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How can I apply trigonometry rules to an isosceles triangle?

First, split the isosceles triangle down the middle to create a right angled triangle. Then label the opposite, hypotenuse and adjacent. The hypotenuse will be the longest side of the triangle, the opposite ...
GW
Answered by Gwen W. • Maths tutor
35559 Views

factorise the quadratic: v^2+20v+19

Recap defintions: factorise essentially means making the equation simpler by finding the common factors. This is a simple quadratic because the first term has a coeffecient of 1. therefore we know it will fa...
TL
Answered by Taylor L. • Maths tutor
4354 Views

Solve the simultaneous equations: 3x+7y=18 and x+2y=5

To help us to see what we need to do in this question, I would always line the equations up one above the other, and label them (1) and (2). Here we'll say that (1) is 3x + 7y =18 and (2) is x+ 2y =5 - To so...
HC
Answered by Harriet C. • Maths tutor
7666 Views

what is x+24=15

x+24-24=15-24 x=15-24=-9
RW
Answered by Ruyuan W. • Maths tutor
5911 Views

A straight line goes through (0,1), (2,5) and (4,9). The equation of the straight line is y=2x+1. Is the point (7,12) on this straight line?

First we'll figure out what the numbers in the co-ordinates mean. On the point (7,12) x= 7 and y=12. - The equation of the line is in the form of y=mx + c so for the point to be on the line, the y value must...
HC
Answered by Harriet C. • Maths tutor
9682 Views