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Asked by Christabelle
Express 24 as a product of its prime factors
*2*x12 *3*x4 *2*x*2* 24=2x2x2x3
Asked by Baro
A number x rounded to 1 decimal place is 12.3
the error interval for the number is: 12.25<= x < 12.35
Asked by Summer
If £2000 is placed into a bank account that pays 3% compound intrest per year, how much will be in the account after 2 years
There are 2 ways we could solve this question. THE LONG WAY: We add 3% to the capital sum (i.e. 2000 pounds) to find how much money we have after 1 year and then add 3% percent to that sum to find how much you have after two years. If the compound interest is 3% then that essentially means that after 1 year you have 103% of the original i.e. we have 100% of the original which is just the value... more
Asked by Garce
P is the midpoint of AD. AQ:QB=2:3. Show that PQ is parallel to CB
Step-by-step explanation: AB and CD are parallel lines. We are given P and Q are mid point of AD and BC respectively. Line AD and Line BC are segmented equally by line PQ which is drawn between parallel lines AB and CD. Hence lines AB, CD and PQ are parallel to each other. In AABD, PR is the line parallel to AB and passing through the midpoint P of side AD. Hence PR = (1/2)AB…(1) Similarly, in ABC... more
Asked by Aarushi
In a school choir 3481 students line up to form a square. Find the number of students in each row.
First, let’s visualise the problem. Students are lined up in rows to form a square. We can imagine this as dots on a square grid. A 2x2 grid would have 4 dots. A 3x3 grid would have 9 dots. A 4x4 grid would have 16 dots. We see the pattern is that the number of dots (or students in our case) is equal to the square of the number of dots/students per row. Our answer is therefore simple. The numbe... more
Asked by Jana
What are the values of x using the factorization method in 4x^2 - 2x -15=0
You would use the quadratic formula: x = -b +- square root of b^2 - 4ac / 2a ax^2 + bx + c = 0 4x^2 - 2x - 15 = 0 using this we know that a = 4, b = -2 and c = -15 the we substitute those values into the equation on a calculator: x = -(-2) + square root (-2)^2 - 4(4)(-15) / 2(4) x = -(-2) - square root (-2)^2 - 4(4)(-15) / 2(4) this gives x to be x = 1 +- square root 61 / 4
Asked by Daniela
There is a film lasting 45 minutes and a quiz lasting 1 hour 45 minutes
What time did it start?