The surface area, S, of a sphere of radius r feet is S = S (r) = 4πr2. Find the instantaneous rate of change of the surface area with respect to the radius r at r = 4.

a. 32pi

b. 16pi

c. 64pi

d. 4pi

The expression below is the factorization of what trinomial? (2x + 7) (4x - 3) A. 8x2 + 22x + 4 B. 8x2 + 28x - 21 C. 8x2 + 28x + 4 D. 8x2 + 22x - 21

9 divided by 8 1/10 minus 5/9 =

Higher Order Thinking Explain how Jay has 14 blocks in all. (you solved the He has 6 yellow blocks. problem! The rest of the blocks are green. How many green blocks does Jay have? Make a 10 to solve. Jay has green blocks.

Ax) = x² + 4x + 5 What is the vertex?

Find f (-3) if f (x) = x 2. -9 -6 6 9

What is the percentage of 0.5

981,657 rounded to nearest ten thousand

A nutrition label states that there are 36 grams of carbohydrates in each serving. this account for 12% of daily value. how many grams of carbohydrates are recommended per day?

The cosine of the complimentary angle to 58° a. 0.74 c. 0.83 b. 0.85 d. 0.94

What is the volume of the rectangular pyramid shown below? 9 in. 8 in. 7 in.