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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 equation ...
CB
Answered by Charles B. Maths tutor
6781 Views

Write 36 as a product of its prime factors

3 2 x 2 2 Drawing a tree during explanation is very helpful.
NK
Answered by Nighat K. Maths tutor
4077 Views

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

Non calculator paper. 162 divided by 3 = 1/554 = 1/554*5 = 270
NK
Answered by Nighat K. Maths tutor
6488 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
MW
Answered by Megs W. Maths tutor
10509 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, a 2 +b 2 =c 2 , where c is the hypotenuse and a and b are the other 2 sides of the triangle. Therefore, in this case a an...
RM
Answered by Rikesh M. Maths tutor
9421 Views