Factor, if possible.x7 - 3x6y - 10x5y2
A. x5(x - 2y)(x + 5y)
B. x5(x + 5y)(x + 2y)
C. x5(x - 5y)(x + 2y)
D. x4(x - 5y)(x + 2y)
Answer: C
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Solve the compound inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.-21 ? -3x - 3 ? -9
A. [2, 6]
B. (2, 6)
C. (-6, -2)
D. [-6, -2]
Solve the problem. Round to the nearest cent.To start a new business, Eric invests $765.13 each month in an ordinary annuity paying 7% interest compounded monthly. Find the amount in the annuity after 5 years.
A. $55,543.01 B. $54,012.75 C. $54,777.88 D. $25,005.41
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? Fractional sacks are allowed.
A. 2 sacks of soybeans and 0 sacks of oats
B. 0 sacks of soybeans and 4 sacks of oats
C. 
sacks of soybeans and 
sacks of oats
D. 
sacks of soybeans and 
sacks of oats
Multiply.0(-19)
A. -38 B. 19 C. -19 D. 0