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Work out the area of this triangle given the lengths of 1 sides (a) and 2 angles (A and B) using either the sine rule

We know the area of any triangle is equal to 0.5abSin(C). This means we need to find the length of side b and the angle C.First we can work out the angle C of the triangle as we know the angles in a trian...

Answered by Risha A. • Maths tutor

3701 Views

How to differentiate y=2x(x-2)^5 to find dy/dx?

Firstly, you should formulate the problem by using the product rule, which is: dy/dx = u'v + v'uBy assigning u=2x and v=(x-2)

Answered by Anup P. • Maths tutor

5165 Views

Solve for x and y: x ^2 +2y = 9,y = x + 3

Replace y with x + 3. x^2 + 2(x+3) = 9
2) Expand the bracket, and subtract 9. x^2 + 2x - 3 = 0
3) Factorise the quadratic(x - 1)(x + 3) = 0
4) Therefore, x has 2 solutions. x = 1 and ...

Answered by Changavy K. • Maths tutor

2574 Views

what is 87% of 654

First, lets find 1%. TO do this, divide 654 by 100. This is because 654 is 100%, so 654/100 is 100/100% = 1%. Now that we have 1%, multiply this by 87 to find out what is 87%.

Answered by Nikita Z. • Maths tutor

922 Views

Find the equation of the line that passes through ( 5 , -4 ) and (3,8).

The equation of a straight line takes the form of y=mx+c where m is the gradient of the line and c is the y-intercept (where the line crosses the y-axis). The best way to start this question is to draw a ...

Answered by Ksenia Z. • Maths tutor

4252 Views