A) If the gradient of a line, A, is 4, what is the gradient of the line which is perpendicular to A?
b) If the gradient of a line, B, is –3, what is the gradient of
the line which is perpendicular to B?
c) If the gradient of a line, C, is Ķ, what is the gradient of
the line which is perpendicular to C?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

Order the measurements from the least to the greatest. 2,720 ml , 24.91 l , 0.0268 kl

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.