Top answers

A ladder of length 4.5m is leaning against a wall. The foot of the ladder is 2.3m from the base of the wall. What is the angle the ladder makes with the wall?

This is an application of trigonometry. The right angle in this case is between the wall and the floor and the hypotenuse is the ladder. The angle between the wall and the ladder can using the sine of the an...
NF
Answered by Nicci F. • Maths tutor
6382 Views

How can I evaluate the extent to which increased competition leads to higher levels of economic efficiency?

Keeping all other factors fixed, increased competition will make the demand curve that firms face flatter due to increased elasticity of the demand. By drawing a diagram depicting a firm's costs and revenues...
RS
Answered by Rebecca S. • Economics tutor
2432 Views

Calculate the rate of change of d(t )=2/(3t), t ≠ 0, when t=6.

When a question asks for rate of change, this means you need to differentiate the equation. First you need to put the equation into differentiable a form ie, with the no variables on the denominator: f(t) = ...
LI
Answered by Lucy I. • Maths tutor
2703 Views

Answer quadratic equation in the simplest surd form/ exact from. 5-2x-x^2=0

5-2x-x 2 =0x 2 +2x-5=0 (moving everything over to the other side)then using the quadratic formula (to use a whiteboard during interview)a=1, b=2, c=-5x=(-2 +/- √(2^2 - 4x1x-5))/(2x1)x=(-2 +/- √(4+20))/2x=(-2...
SO
Answered by Seun O. • Maths tutor
4351 Views

Que pourrait-on faire pour réduire la pollution?

D'après moi, il faut agir vite pour réduire la pollution et sauver notre planète. Toutes nos petits gestes éco-citoyens aideront lutter contre la pollution sans cesse. Par exemple, il faut éteindre les lumiè...
HP
Answered by Harry P. • French tutor
2789 Views