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The point P has coordinates (3,4), Q has the coordinates (a,b), a line perpendicular to PQ is given by the equation 3x+2y=7. Find an expression for b in terms of a

Firstly, let's have a look through the question to find the key words and write down any equations you might need. Perpendicular means the two lines cross and meet at a right angle, we also have an equati...

Answered by Charles B. • Maths tutor

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Write 36 as a product of its prime factors

3² x 2²
Drawing a tree during explanation is very helpful.

Answered by Nighat K. • Maths tutor

3573 Views

3/5 of a number is 162. Calculate the number.

Non calculator paper.
162 divided by 3 = 1/554 = 1/554*5 = 270

Answered by Nighat K. • Maths tutor

5000 Views

Rearrange the following formula to make x the subject. y=4x-7

Answer: x=(y+7)/4
Workings:y=4x-7 add 7 to both sidesy+7=4x divide both sides by 4 to give the answer

Answered by Megs W. • Maths tutor

9196 Views

2 sides of a right-angled triangle are 5cm and 6cm. Calculate the length of the hypotenuse.

You need to use Pythagoras's theorem which states that for any right angled triangle, a²+b²=c² , where c is the hypotenuse and a and b are the other 2 sides of the triangl...

Answered by Rikesh M. • Maths tutor

7815 Views