Top answers

What are the limits of an inverse tan graph.

pi/2 and -pi/2
EH
Answered by Emily H. • Maths tutor
3883 Views

Expand the brackets to create an equation. (2x+7)(x-3)

shown using a diagram during interview using the crab claw method, multiplying the correct components with one another, displaying how to set it out neatly and correctly to the benefit of the examiner. = 2x^...
JF
Answered by James F. • Maths tutor
2475 Views

16cos30° - 5tan60° = √x. Find the value of x.

Split up the two terms: cos30° = (1/2)√3 and tan60° = √3 (from memorised values of cos and tan)Therefore 16cos30° = 8√3 and 5tan60° = 5√3 8√3 - 5√3 = 3√3 = √9 x √3 = √27x=27
DG
Answered by David G. • Maths tutor
3241 Views

Bob goes on a run. He runs at a constant speed of 5m/s for 30 minutes. How far does he run?

we know that distance = speed x time, so we should multiply the time (in seconds) by the speed that Bob runs. So Bob runs a distance of 5 x (30x60) = 5x1800 = 9000m (or 9km)
AR
Answered by Adam R. • Maths tutor
3771 Views

f(x)=cos(x), g(x)=2+cos(x-1), state g(x) as a vector applied to f(x)

First of all, look at what has happened to the y co ordinates, they have all been moved up by 2 units. Now consider the x co ordinates, they have been shifted to the right by 1 unit. So the vector is 1 2
RM
Answered by Rachel M. • Maths tutor
2838 Views