Top answers

Translate into Spanish: A spokesman said the project would include seventy wind turbines

Un portavoz dijo que el proyecto incluiría setenta molinos de viento.
SM
Answered by Silvia M. • Spanish tutor
1724 Views

Derive 2*x^(3/2)+x+4

Will differentiate to 3*x^(1/2)+1. As you bring down the power and mulitply it my the coefficients, and take one off of the power for terms with x. And any constant differentiates to 0.
FW
Answered by Finnley W. • Maths tutor
3779 Views

How do i remember the difference between differentiation and integration?

The easiest thing to do is to look at what is in the name. For integration you have `in`, which corresponds to an `increase` in power. Whereas with differenentiation you have `d` for decrease in power. Then ...
TM
Answered by Taha M. • Maths tutor
4486 Views

The curve C has parametric equations x=2cos(t) and y=3cos(2t). Find and expression for dy/dx in terms of t.

Differentiate both equations given with respect to t. dx/dt = -2sin(t) dy/dt = -6sin(2t) dy/dx = (dy/dt) / (dx/dt) Sub your values in to get dy/dx = (3sin(2t))/sin(t)
SK
Answered by Sameerah K. • Maths tutor
13423 Views

A metal sphere of radius 15cm is melted down and recast into a solid cylinder of radius 6cm. Calculate the height of the cylinder.

Using the eqauation for volume of sphere (V=4/3 pi r^3) calculate the volume of the original sphere. This comes to 14137.2 cm^3 (1dp). The new cylinder formed has the same volume. Therefore, you can use the ...
SK
Answered by Sameerah K. • Maths tutor
14455 Views