Evaluate the limit. x2 – 5x – 7

Solve the equation.5×2 – 30x + 40 = 0

Solve the problem.A storage tank used to hold sand is leaking. The sand forms a conical pile whose height is twice the radius of the base. The radius of the pile increases at the rate of 3 inches per minute. Find the rate of change of volume when the radius is 7 inches.  Use the formula V= πr2h.

Find the point(s) on the graph of f(x) in which the tangent line is horizontal. f(x) = -3×2 + 12x – 4

A child who makes little eye contact with the teacher while speaking ____.

Label the following crystal that has a pH of 5-5.5:

What is the normal range for the following cell on a differential?

A form of indirect guidance is ____.

The following cell would be increased in:

Label this acidic crystal: