Approximate the area under the curve graphed below from x = 2 to x = 5 using a Left Endpoint approximation with 3 subdivisions.

The surface area (sa) of a cube with a as the length of each of its sides is given by the formula . if the surface area is known, how can you rewrite the formula to find its side?

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?