# George Hobson

Qualified Maths Teacher, with a track record of improving results!

6662Students helped
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Maths

Asked by Lauren · 4 years ago

Find the integer value of x that satisfies both inequalities x + 5 > 8 and 2x - 3?

I think you maybe missing something from your question? 2x - 3....? Since we are only looking for one integer as the answer perhaps it was 2x - 3 < 7 The first inequality gives us x > 3 after we subtract the 5 from both sides. The second part we would add 3 to both sides to get 2x < 10 and then divide by 2 to get x < 5. If x > 3 and x< 5, your answer is 4.

Maths

Asked by Alice · 4 years ago

Hi, does anyone know the formula for Sin (trigonometry)?

Sin (a) = opposite/hypotenuse SOH CAH TOA can help you to remember this, give it a google! However if you mean the sine rule, it’s: a/sin(A) = b/sin(B) = c/sin(C)

Maths

Asked by Hannia · 4 years ago

What are factors?

Factors are numbers you can multiply together to get another number. For example: The factors of 16 are: 1 x 16 2 x 8 4 x 4 So 1, 2, 4, 8 and 16

Maths

Asked by Harry · 4 years ago

What is a parallelogram?

A parallelogram is a 4 sided shape with 2 pairs of parallel lines and two pairs of equal angles. Sort of like a squashed rectangle!

Maths

Asked by Nat · 4 years ago

How do you change a decimal into a percentage?

Multiply by 100 0.86 x 100 = 86%

Maths

Asked by Chloe · 4 years ago

What is adjacent in a shape?

Adjacent means “next to”, so in a shape an adjacent sides would be two sides that are next to each other.

Maths

Asked by Annie · 4 years ago

A snail travels at 0.7m per hour. How far does it travel in 6 hours?

0.7 x 6 = 4.2m

Maths

Asked by Nayeesha · 4 years ago

Write the following using algebraic notation using the letter x for any unknown numbers: I think of a number,multiply it by two, then subtract nine?

2x - 9 We first multiply our number “x” by 2 and then subtract 9 from whatever this answer is.

Maths

Asked by Tracy · 2 years ago

What is the mode out of these numbers 3 7 2 4 7 5 7 1 8 8?

The mode of a set of numbers is the number that appears the most. Here we can see that 7 appears 3 times and no other number appears more than that, so the mode is 7.

Maths

Asked by Zoe · 4 years ago

How do you complete the square?

(^ means “to the power of”) For example: x^2 + 6x - 10 We halve the number before the x and put it into a bracket with the x and square the bracket as below. (x + 3)^2 We don’t want the 3^2 so we subtract 9 (3^2 is 9). (x + 3)^2 - 9 Finally keep the number from the original equation the same. So, (x + 3)^2 - 9 - 10 Final answer = (x+3)^2 - 19 It’s gets a little harder if you have a n... more

# George Hobson

Qualified Maths Teacher, with a track record of improving results!

6662Students helped