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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Total answers82 questions answered
Total hoursUnder 5 hours taught
Total resourcesUnder 3 resources

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Hi, I'm Dr. Badi

โ€œI am an experienced former university lecturer ( in engineering ), and have taught mathematical subjects for many years. For school levels, I have tutored maths at both Advanced Level and GCSE with very successful results. I have also taught basic numeracy for mature students. My aim is to raise the achievements of my students through guided revision and confidence building.

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My education

Queen Mary University of London logo

Queen Mary University of London

Mechanical Engineering - PhD (1978 - 1982)

Queen Mary University of London logo

Queen Mary University of London

MSc Systems Eng. - M (1977 - 1978)

Queen Mary University of London logo

Queen Mary University of London

Mechanical Engineering - 2:1 (1970 - 1973)

My availability

7am - 12pm
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My answers

Asked by Myp.Phe Edify

Physics ๐Ÿš€
A train travels 700 km in 35 secs. What will the speed be meters per second?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

700000/35= 20000 m/s Unrealistic !!!

Asked by Myp.Phe Edify

Physics ๐Ÿš€
A train travels 700 km in 35 secs. What will the speed be meters per second?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Average speed is 700000/35 = 20000 m/s Unrealistic as it is approx 58 times the speed of sound !!!

Asked by Tayla&

General ๐Ÿ›
How do u do sampling?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

By measuring data at equal intervals and for accuracy the intervals need to be as close as possible and hence more frequent

Asked by Liam

History ๐Ÿ•Œ
What armies did the Crusaders fight? What was their religion?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

The obvious answer their religion is Islam and the three crusades lasted around 200 years so there were many armies during that time to name a coup...Learn more

Asked by Kochava

General ๐Ÿ›
What is the LCD of 5/22-1/33?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

LCD(5/33, 1/22) = LCM(33, 22) = 2ร—3ร—11 = 66

Asked by Emilloa

Maths ๐Ÿ’ฏ
How can I start writing this in complex exponential form: 20sin(1000t-30degrees)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

30 degrees = pi/6 Demoivers theorem states R e^(jtheta) = R [cos(theta) + j sin(theta)] Hence 20sin(1000t-pi/6) = Im [ 20 e^(1000t-pi/6) Where Im ...Learn more

Asked by Samm

General ๐Ÿ›
What is the relationship between physics and technology?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Briefly Technology is primarily based on Engineering which has its basis on Physics and Maths. So physics is the basic science of understanding natu...Learn more

Asked by Izzie

General ๐Ÿ›
What does NIC stand for in geography?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Newly Industrialised Country (NIC) is a term used by economists to describe countries such as Turkey, Malaysia, China, India etc... countries whoโ€™s ...Learn more

Asked by Ella

Maths ๐Ÿ’ฏ
How do you solve simultaneous equations?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

These are equations which relate variables and should be solved at the same time by eliminating one variable then by substitution finding the others...Learn more

Asked by Jt

General ๐Ÿ›
In a class there are 10 students who play football and cricket, 7 students who do not play football or cricket , 14 students who play football and 21 students who play cricket . Find a probability that the student plays football and cricket?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Draw a Ven diagram ie a rectangle with 2 circles one for F and the other for C the intersection overlap will have the 10 who play both outside the c...Learn more

Asked by Cristina

Physics ๐Ÿš€
A weather balloon has a volume 1750L at 1.016 atm and is released into the atmosphere. At the highest point above the ground, the pressure is 35.0 kPa. Whatโ€™s the volume of the balloon?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

1.016 atm converted to kPa = 102.946 kPa Use Boyleโ€™s Law P1 V1 = P2 V2 So 1750 x 102.946 =35 V2 From this V2 = (1750x 102.946)/35 So V2 = 5247.3 ...Learn more

Asked by Lorry

Maths ๐Ÿ’ฏ
I have some difficulty in maths and i dont know the question :6a-9y?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

What is the question ?

Asked by Joe

History ๐Ÿ•Œ
What was the first country to be founded?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

San Marino a microstate within a state surrounded by Italy was founded in 301 AD. It founded originally as a monastery and sits on top of Monte Tet...Learn more

Asked by Aimee

General ๐Ÿ›
How is concrete made? a step by step list in detail?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

There are three basic components of concrete Cement, Sand and Aggregate ( mixture of sand, gravel and crushed stones ). The grades of concrete are c...Learn more

Asked by Liam

Geography ๐Ÿ—บ
Why does the sedimentary rock limestone react with HClHCl acid?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Limestone and hydrochloric acid has metathesis ( Double decomposition) reaction: the equation is CaCO3 + 2HCl = CaCl2 + CO2 โ†‘ + H2O, solid calcium c...Learn more

Asked by Jeniffer

History ๐Ÿ•Œ
Can anyone summarize the Spanish Inquisition?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Basically with the expulsion of Moors and Jews from Spain the Spanish Inquisition was a tribunal started in 1478 in Spain. It was started by Ferdin...Learn more

Asked by Duafatema

Maths ๐Ÿ’ฏ
The coefficient of x in the binomial expansion of (2-4x) ^q , where q is a positive integer, is -32q. Find the value of q?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

(2-4x)^q = 2^q (1-2x)^q Binomial expansion (1+x)^n = (1+nx+......etc.) So above becomes 2^q (1 -2qx+...) Coefficient of x is -2^(q+1)q = -32q Then (...Learn more

Asked by Caitlin Grace

Maths ๐Ÿ’ฏ
How do you solve the simultaneous equations xsquared + ysquared =9 and x+y=2?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

The squared equation is a circle whoโ€™s centre is the origin and radius 3 units. The linear equation is a straight line of Y=-x + 2 Solo of -1 and ...Learn more

Asked by Tasnim

General ๐Ÿ›
What authorities to apply for individual not registered on the freehold title and proprietorship register?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Iโ€™m wondering as to why this question is repeated so many times !

Asked by Blessing

General ๐Ÿ›
Explain the similarities and differences in the composition inhaled and exhaled air?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

The composition of exhaled air (air that is breathed out) is very different from the composition of inhaled air (air that is breathed in). Inhaled a...Learn more

Asked by Syed

General ๐Ÿ›
Arabic teacher who reached laventine dialect?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

https://m.youtube.com/watch?v=SDxGAH83cuo

Asked by Hajar

Physics ๐Ÿš€
What energy store is decreasing while the candle is burning?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

The fuel for burning is the wax which is constantly decreasing once it is turned into vapour it combines with the air oxygen to form the flame.

Asked by Bella

Maths ๐Ÿ’ฏ
How do you find the equation of a line on a graph using the equation y=mx+c?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

If you have 2 points then you can substitute in the equation and find the slope m and the y intercept c

Asked by Bella

Maths ๐Ÿ’ฏ
Whatโ€™s the equation of a line on a graph with points of (3,-3) (-2,2)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Y=mx*c Sub gives -3=3m+c Also 2=-2m+c Subtract both equations You get 5=-5m So m=-1 Sub into either equation C=0 Therefore y=-x Is equation of the...Learn more

Asked by Georgia

Maths ๐Ÿ’ฏ
What is 2x + 7x + 3?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

9x+3 Are you sure this is the full question?

Asked by Shelina

Quraan ๐Ÿ“—
What is the difference between Quran teaching and Islamic studies? Then there is also arabic teaching...?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply - Arabic is the language of the Quran Islamic Studies is the study of History of Islamic civilisation and Quranic teaching is the study of th...Learn more

Asked by Sefi

Maths ๐Ÿ’ฏ
Nathan Spends ยฃ2.14 on ingredients by the end of the day he has ยฃ9.63 work out the percentage Profit?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Assuming that there are no other costs then the profit is simply ยฃ9.63 - ยฃ2.14 = ยฃ7.49 % profit from his expenditure of ยฃ2.14 = (7.49 / 2.14) x100 ...Learn more

Asked by Elee

General ๐Ÿ›
What are the plans for ordinary differential equations?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

What is your question for ord diff equns ???

Asked by Freya

Maths ๐Ÿ’ฏ
What is 4x+2=2x+14?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply bring x to RHS and the numbers to LHS so you get 4x-2x = 14 - 2 2x = 12 Divide both sides by 2 x = 2

Asked by Jake

General ๐Ÿ›
What are symemetrical and unsymmetrical bending and what is the significance of these concepts in engineering?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Symmetrical bending of beams is the basis of the linear flexure equation or bending theory for a beam supported (simple or cantilever ) subjected to...Learn more

Asked by Jake

General ๐Ÿ›
What are the important equations governing the deflection of unsymmetrical beams and what are the assumptions behind them?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Have a look at this link Check out the worked examples http://www.engineeringcorecourses.com/solidmechanics2/C2-bending/C2.1-unsymmetric-bending/t...Learn more

Asked by Paula

General ๐Ÿ›
What is the difference Between a transverse and a longitudinal wave?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

I have answered this already but briefly again longitudinal wave is when particles move inline with the wave progression such as sound waves and tra...Learn more

Asked by Benjamin

Maths ๐Ÿ’ฏ
How to find a tangent?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

A tangent to a curve is the slope of a line just touching the curve can be found by differentiation of the equation of the curve. If what you are lo...Learn more

Asked by Jake

Physics ๐Ÿš€
How do you calculate theoretical deflections for an experiment on unsymmetrical bending of a cantilever beam & what are the units to be used for young's modulus, length, force and 2nd moment area of used for the equation used to calculate deflection?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

All this depends on the cross section of the cantilever and how it is supported then you build the theoretical model. Units of Youngโ€™s Modulus are P...Learn more

Asked by Selina

Maths ๐Ÿ’ฏ
How do you prove Pythagoreas theorem?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Easiest is the geometric solution if you draw squares on each side of the right angled triangle youโ€™ll find that the area of the square along the hy...Learn more

Asked by Gaby

Maths ๐Ÿ’ฏ
I went to a store and bought an item worth $30. I had to pay 9% tax as well. How much did I pay JUST for the tax?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply multiply 0.09 by $30 and it gives you $2.7 Which is your tax !

Asked by Jude

Maths ๐Ÿ’ฏ
How do you calculate the area of a similar shape?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

An area ratio is found by the square of length ratio. So simply work out the area of the smaller shape then multiply it by the ratio of the lengths ...Learn more

Asked by Nawaar

Maths ๐Ÿ’ฏ
Can I please have some help with the following question: Prove that:(sec (x) - 1)/(1 + sec (x)) = (tan^2 (x/2))Thanks ๐Ÿ˜€?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Start off by using tan^2(A/2) = ( sin^2(A)/(1+cosA)^2) So tan^2(x/2) = ( sin^2(x)/(1+cosx)^2) = ( 1- cos^2(x))/(1+cosx)^2 = (1-cosx)(1+cosx)/((1+c...Learn more

Asked by Sahma

Maths ๐Ÿ’ฏ
How do you find the nth term of the sequence: 5,14,29,50,77 I got 3nยฒ+2+2. Is that correct?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply the answer is incorrect if you substitute n=1 for first term in your equation youโ€™ll get 7 while it should be 5. The correct answer is as fol...Learn more

Asked by Melina

Maths ๐Ÿ’ฏ
A right angled triangle with one side 5.7 cm and the other 6.3 cm what is x (the short side, base)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Longest side is the hypotenuse so by Pythagoras (6.3)^2 = (5.7)^2 + x^2 Rearranging x = Sqrt((6.3)^2 - (5.7)^2) So x = 2.68 3sf

Asked by Lara

Physics ๐Ÿš€
What is the velocity of a car if the acceleration is 15m/s^2 and the time taken in 2s?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply use the equation v=u+at assuming car started from rest then initial velocity u=0 so final velocity v = 15*2=30 m/s^2

Asked by Ian

General ๐Ÿ›
Which websites are best for finding past papers, mark schemes and examinerโ€™s comments?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Try examsolutions.net for Maths

Asked by Fatima

General ๐Ÿ›
How can you stop using social media? I have my gcsd this year and i want to study is there any good revesion techniques other than shutting of my phone because i feel like that it does not help me is there any other useful apps to help me study?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

The usual double use tool such as the knife for good or evil. There are huge number of invaluable resources on the net one example of many available...Learn more

Asked by Ruby

Career Advice ๐Ÿ‘จโ€๐Ÿš€
Does anyone have any career recommendations for me? I am studying a level maths,biology and economics and not sure what to do with my life. Thanks?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Maths and biology are an ideal combination for a career in Computational Biology or Bioinformatics also BigData, but you have to start by doing a f...Learn more

Asked by Daisy

Physics ๐Ÿš€
The surface of some metals, such as iron, corrode when exposed to air. Explain how this affects the electrical conductivity of the metal (3)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Electrical conductivity will decrease as rust or iron oxide can contain moisture and becomes a poor conductor.

Asked by Daisy

General ๐Ÿ›
Some students were discussing whether to make wires for a phone charger from copper metal or graphite. Compare the properties of copper and graphite to decide which material would be better for making the wire (6)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Copper is a far better conductor than graphite and is universally used for making wires. Graphite is more resistive and a poorer conductor.

Asked by Kij

Arabic ุน
I really want to learn Arabic, but I don't know where to start. Any advice?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Arabic is a phonetic language so once you learn the alphabet the words are pronounced as theyโ€™re written, although unlike Indo-European languages it...Learn more

Asked by Art

Economics ๐Ÿ“ˆ
If you take a constant out of a variance do you have to square it?? (This is to do with Econometrics)?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

https://www.fruugo.co.uk/multiplication-table-poster-print-20-x-20/p-15597638-33458823?ac=google&gclid=EAIaIQobChMI1cnakL-q4AIVDLDtCh1Kvw_aEAQYASABE...Learn more

Asked by Kane

General ๐Ÿ›
13 and 14 times tables?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

https://www.fruugo.co.uk/multiplication-table-poster-print-20-x-20/p-15597638-33458823?ac=google&gclid=EAIaIQobChMI1cnakL-q4AIVDLDtCh1Kvw_aEAQYASABE...Learn more

Asked by Devendran

General ๐Ÿ›
There are 128 teachers in a school. 3/4 of the male teachers and 3/5 of the female teachers own a car each. 47 teachers do not own a car at all. How many female teachers are there in the school ?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

I answered this above !

Asked by Faizah

General ๐Ÿ›
A stone is projected vertically upwards from ground level at a speed of 35.5m/s for how long was the stone at least 21m above ground level?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Use the constant acc eq S= ut + (1/2)at^2 21= 35.5 t -(1/2) 9.81 t^2 9.81 t^2 - 71t + 42=0 Solving quadratic in t gives t= 0.649. and t= 6.59 s S...Learn more

Asked by Faizah

Physics ๐Ÿš€
A particle is projected vertically upwards with a speed of 100 ms-1 from a point at a height of X meters above ground level. If the stone hits the ground 25 seconds later ,find h?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Use s=ut+(1/2)at^2 Positive upwards -h=100(25)-(1/2)9.81(25^2) h= 565m

Asked by Faizah

General ๐Ÿ›
A particle is projected vertically upwards with a speed of 100m/s from a point at a height of h metres above ground level, if the stone hits the ground 25 seconds later, find h?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

I already answered this question !

Asked by Faizah

Physics ๐Ÿš€
Two stone are thrown from the same point at the same time, 1 vertically upwards with a speed of 20m/s and one vertically downwards at 20m/s find how far apart the stones are after 2 seconds?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Use s=ut+(1/2)at^2 Stone1 S1=20(2)-(1/2)9.81(4) S1=20.38m Stone2 S2=20(2)+(1/2)9.81(4) S2=59.62m Adding s1+s2= 80m

Asked by Simran

Maths ๐Ÿ’ฏ
What is trigonometry?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Trigonometry is from Greek trigลnon โ€œ triangle" and metron โ€œ measure" , is a branch of mathematics that studies relationships involving lengths and ...Learn more

Asked by Devendran

General ๐Ÿ›
There are 128 teachers in a school. 3/4 of the male teachers and 3/5 of the female teachers own a car each. 47 teachers do not own a car at all. How many female teachers are there in the school ?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Use 2 algebraic equations Total no of teachers 128 x male teachers and y female teachers so x+y = 128 .... eq 1 Number of teachers who own cars = ...Learn more

Asked by Paula

General ๐Ÿ›
What is the difference Between a transverse and a longitudinal wave?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Transverse Waves is when the vibration or displacement of the medium is perpendicular to the direction of propagation of the wave. An example of th...Learn more

Asked by Max

General ๐Ÿ›
When did life on Earth begin?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

If you mean humans then it is estimated between 1 million to half a million years ago.

Asked by Selina

Maths ๐Ÿ’ฏ
What is a right-angle triangle?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

A triangle that has one 90 degrees angle !

Asked by Selina

Maths ๐Ÿ’ฏ
What is an equilateral triangle?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

An equilateral triangle is one which has all sides equal and internal angles are each 60 degrees.

Asked by Santhi

General ๐Ÿ›
It takes 3 men to paint a block of flats completely in 22 day . Each man takes an equal number of days to paint a block of flat . How many days will it take 2 men to paint 3 similar blocks of flats completely?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

3(22)= 66 man-days to finish 1 block For 3 identical blocks 3(66) = 198 man-days are needed so for 2 men working (198/2)=99 days are needed.

Asked by Ahmed

Maths ๐Ÿ’ฏ
What are prime numbers?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Prime Number is a number that is divisible only by itself and 1 (e.g. 2, 3, 5, 7, 11).

Asked by Robert

General ๐Ÿ›
What's the easiest coding language to learn?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

JavaScript or Python

Asked by Jess

Maths ๐Ÿ’ฏ
In algebraic expressions how do you convert the brackets into a normal equation so for example, how would you convert (5x+ ) = (8x-7?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

In this case you simply remove the brackets and then solve the equation normally.

Asked by Engrils

Maths ๐Ÿ’ฏ
Quadratic equatio?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Quadratic equations are ones with x^2 in other words a variable x to the power 2. Usually takes the form: a x^2 + b x + c =0 Can be solved by facto...Learn more

Asked by Dee

General ๐Ÿ›
What is the papal bull?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

DescriptionA papal bull is a type of public decree, letters patent, or charter issued by a pope of the Roman Catholic Church. It is named after the...Learn more

Asked by Vicky

General ๐Ÿ›
There are 440 children at a school 231 of them are boys what percentage are the boys? Sorry Iโ€™m really stuc?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply divide and multiply by 100 % boys = (231/440)x 100 = 52.5 %

Asked by Vicky

General ๐Ÿ›
There are 440 children at a school 231 of them are boys what percentage are the boys? Sorry Iโ€™m really stuc?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Simply divide and multiply by 100 % boys = (231/440)x 100 = 52.5 %

Asked by Lacey

Maths ๐Ÿ’ฏ
Express 540 as a product of its prime factor?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

A prime number is one which does not divide into multiples of smaller numbers and are all odd numbers so not divisible by 2. For 540 you start by di...Learn more

Asked by Lacey

Maths ๐Ÿ’ฏ
Express 540 as a product of its prime factor?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

A prime number is one which does not divide into multiples of smaller numbers and are all odd numbers so not divisible by 2. For 540 you start by di...Learn more

Asked by Sophie

Maths ๐Ÿ’ฏ
What is 30% of 35?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

30% of 35 =(30/100)x 35 = 0.3 x 35 = 10.5

Asked by Lily

Maths ๐Ÿ’ฏ
How do you make x the subject of an equation with fractions on each side? For example: v/7x=w/?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Your question is not clear and incomplete but if you mean (v/7x) = (w/y) Easiest way is to flip both sides upside down so (7x/v) = (y/w) Multiply bo...Learn more

Asked by Fatima

General ๐Ÿ›
If a man asks for 1 piece of rice for the first box, 2 for the second and 4 for the third, what is the total amount of rice in all of the 64 boxe ? can someone please give me a good and detailed and not too complicated, I would be very grateful! =?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

If you want help with this question then you have to ask it properly. Anyway this is Geometric Series with sum S S = (a(1-r^n) ) / (1-r) a is first...Learn more

Asked by Mary

General ๐Ÿ›
Congruent triangl?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Congruent triangles are those which have the same identical length sides and the same angles but could be in different positions or orientations.

Asked by Anna

Maths ๐Ÿ’ฏ
How to do Pythagoras theorem?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Pythagoras theorem States that in a right angled triangle if you square the Hypotenuse c which is longest side facing the right angle (90 degrees) i...Learn more

Asked by Fran

General ๐Ÿ›
How do you say wait a moment in German?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Warten Use google translate https://translate.google.co.uk/#view=home&op=translate&sl=auto&tl=de&text=wait

Asked by Josh

Maths ๐Ÿ’ฏ
How do I find the area of a triangle when I only know the three side lengths?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

You need to know at least one angle otherwise it is impossible

Asked by Niamh

Maths ๐Ÿ’ฏ
What is frictio ?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Friction is the resistance force encountered when two surfaces rub on each other.

Asked by Beckypennant@Btinternet.Com

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What is an electrical current?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Electric current is the flow of electric charge. In electric circuits this charge is often carried by electrons moving through a wire. The charge fl...Learn more

Asked by Faith

Maths ๐Ÿ’ฏ
Increase ยฃ14120 by 4%. Give your answer rounded to 2 decimal points?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

4% of 14120 = 1.04x14120 = 14684.8

Asked by Isabella

General ๐Ÿ›
How do I solve quadratics by completing the squares? Iโ€™ve looked it up, but I donโ€™t get it and I have homework due on it?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

Best to give an example x^2 -6x +8=0 can factorise it easily but by completing the square you do this (x-3)^2 +8 -9 =0 so (x-3)^2 - 1= 0 So basicall...Learn more

Asked by Lola

Physics ๐Ÿš€
List all the bodies where the Center of mass and Center of gravity coincide?
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Dr. Badi M

Experienced Academic and dedicated tutor for all levels.

This would be s huge list ! Basically for uniformly distributed weight one the cg and mass centre coincide. A rough guide of this condition is that ...Learn more