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How to find the longest side of a right-angled triangle if we are given the two other sides?

We can find the longest side of a right angled triangle (also called the hypotenuse) by using Pythagoras' Theorem and considering the lengths of the two other sides given to us. Pythagoras' Theorem is writte...
DC
Answered by Denzel C. • Maths tutor
19965 Views

Differentiate the following: y=sin(x^2+2)

dy/dx = 2xcos(x 2 +2)
MB
Answered by Matthew B. • Maths tutor
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make x the subject of 5(x-3) = y(4-3x)

step 1 ; expand the brackets5x - 15 = 4y - 3xystep 2 ; group together x values on one side5x + 3xy = 4y + 15step 3 ; single out xx (5+3y) = 4y +15step 4 ; make x the subjectx = (4y + 15) / (5+3y)
SA
Answered by Sofia A. • Maths tutor
5412 Views

Write down the length of side "a"

Using Pythagoras' theorem: a 2 = b 2 + c 2 You can use the length of the other two sides to calculate a.
RK
Answered by Rhys K. • Maths tutor
3305 Views

Solve these simultaneous equations 2y+x=8, 1+y=2x.

When solving simultaneous equations the first step is to take one of the equations and rearrange it to make one of the terms the subject. In this case lets take the equation 1+y=2x. Take the 1 over to the ot...
LK
Answered by Lewis K. • Maths tutor
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