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The Diagram shows the Triangle PQR. PQ = x cm. PR = 2x cm. Angle QP^R = 30 degrees. The area of the triangle PQR = A cm^2. Show that x = (Squared Root){2A

Area of a Triangle Formula is A = 1/2 abSINc Label the sides of the triangle PR = 2x = a PQ = x = b 1/2 (x) 2x (x) x (x) SINc = A = x 2 SINc Rearrange the equation to give (squared root) { A = x { SINc QP^R ...
TD
Answered by Tutor305386 D. • Maths tutor
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I am thinking of two numbers. When I add my numbers, the answer is 1 When I multiply my numbers, the answer is 0.09 What are my numbers?

think of ways to add up 1. 0.5 x 20.4 and 0.60.3 and 0.70.2 and 0.80.1 and 0.9 then multiply them and you'll find the last one to be correct
OB
Answered by Omar B. • Maths tutor
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Sketch the curve y=x^2-x-6

This curve is a quadratic due to the highest power in the equation being two. Quadratics typically have the shape of a U. Due to the coefficient of the x^2 term being positive, the curve is increasing for la...
MA
Answered by Masum A. • Maths tutor
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Solve the simultaneous equations 'x-2y=3' and 'x^2+2y^2=27'

Equation 1: x-2y=3Equation 2: x 2 +2y 2 =27The easiest way to do this is to put one of these equations into the other, by rearranging for either x or y. Because there are no squares to deal with in equation ...
TK
Answered by Tahmid K. • Maths tutor
7839 Views

Evaluate the integral between 5 and 3 for xe^x

Firstly, by looking at the integral, we see that this will have to be done by parts. There are 2 parts of this expression, the ' x ' and the ' e^x' . As we know the formula for integration by parts is: integ...
IO
Answered by Ishaan O. • Maths tutor
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