Solve the equation.15p4 + 16p2 = 32p3
A. 
B. 
C. {0}
D. 
Answer: B
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Write a chain rule formula for the following derivative.
for z = f(r, s); r = g(t), s = h(t)
A. 
= 
B. 
= 
+ 
C. 
= 
+ 
D. 
= 
+ 
Solve the problem. Round to the nearest tenth if necessary.Sales of frozen pizza for a club fund-raiser increased from 500 one year to 720 the next year. What was the percent of increase?
A. 30.6% B. 69.4% C. 44% D. 56%
Solve the problem.Suppose an animal feed to be mixed from soybean meal and oats must contain at least 100 lb of protein, 20 lb of fat, and 12 lb of mineral ash. Each 100-lb sack of soybean meal costs $20 and contains 50 lb of protein, 10 lb of fat, and 8 lb of mineral ash. Each 100-lb sack of alfalfa costs $11 and contains 30 lb of protein, 8 lb of fat, and 3 lb of mineral ash. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
A. 
sacks of soybeans and 
sacks of alfalfa
B. 2 sacks of soybeans and 0 sacks of alfalfa
C. 
sack of soybeans and 
sack of alfalfa
D. 0 sacks of soybeans and 2 sacks of alfalfa
Use exponential notation to write the repeated multiplication.8 ? 8 ? 8 ? 8
A. 48 B. 84 C. 82 D. 32