Factor the polynomial f(x). Then solve the equation f(x) = 0.f(x) = x3 + 4x2 - 9x - 36
A. (x + 3)(x - 3)(x + 4) ; -3, 3, -4
B. (x - 3)(x + 3)(x - 4) ; -3, 3, -4
C. (x - 3)(x + 3)(x - 4) ; 3, -3, 4
D. (x + 3)(x + 3)(x - 5) ; 3, -3, 5
Answer: A
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Decide whether or not the given equation is an identity.
= tan y
A. Yes B. No
For the equation, create a table, -3 ? x ? 3, and list points on the graph.2x + 3y = 6
A. 
(-3, 0), (-2, 0.67), (-1, 1.33), (0, 2),
(1, 2.67), (2, 3.33), (3, 4)
B. 
(-3, 8), (-2, 6), (-1, 4), (0, 2), (1, 0),
(2, -2), (3, -4)
C. 
(-3, 4), (-2, 3.33), (-1, 2.67), (0, 2),
(1, 1.33), (2, 0.67), (3, 0)
D. 
(-3, 8), (-2, 7.33), (-1, 6.67), (0, 6), (1, 5.33),
(2, 4.67), (3, 4)
Solve the problem.Assume the cost of a gallon of milk is $3.20. With continuous compounding, find the time it would take the cost to be 4 times as much (to the nearest tenth of a year), at an annual inflation rate of 6%.
A. 23.1 years B. 0.1 years C. 0.0 years D. 8.5 years
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 9 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 oats costs $10 and contains 20 lb of protein, 5 lb of fat, and 1 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 oats
B. 
sacks of soybeans and 
sacks of oats
C.
| 2 sacks of soybeans and 0 sacks of oats |
D. 0 sacks of soybeans and 2 sacks of oats