Top answers

A circle has the equation x^2 + y^2 = 25. There is a point P on this circle with coordinates (4,3). A line is drawn tangental to the circle at point P. This line crosses the x axis at point Q. Find the co-ordinates of Q.

(7,0)
MS
Answered by Matthew S. • Maths tutor
7646 Views

4x+9y=59.5 and x+y=8. Find the values of x and y.

Firstly, take the second equation and make either x or y the subject, which means to make it either x equals or y equals. To make x the subject, we take y away from both sides giving x=8-y. Then, substitute ...
BK
Answered by Bethany K. • Maths tutor
5379 Views

What is algebra used for?

Ok I see why you are asking yourself this since right now you are only expressing certain formulae in a different way. Let me first talk about something else before giving you this answer. When you were in y...
MZ
Answered by Mohsin Z. • Maths tutor
4575 Views

Work out 2(3/4)*1(5/7). Give your answer in mixed number form.

First convert all fractions into improper fractions: 11/4 12/7 Then break down the nominator and denominators into their lowest common denominators (11 3 4)/(4 7) Cancel the common factors on the nominator a...
NS
Answered by Nilja S. • Maths tutor
8246 Views

Solve the linear equation 12x - 4 = 3x + 2

The objective of this question is to find the solution, what is x equal to? The first thing to do is try to get all x terms on one side of the equation and all non x terms on the other. Here we have positive...
DF
Answered by Diogo F. • Maths tutor
5897 Views