Multiply.8x3(-9x5 + 9x4)

A. -72x8 + 9x4
B. -72x8 - 72x7
C. -72x8 + 72x7
D. -72x2 + 72x 


Answer: C

Mathematics

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Use the two steps for solving a linear programming problem to 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.  sack of soybeans and  sack of alfalfa
B.  sacks of soybeans and  sacks of alfalfa
C. 2 sacks of soybeans and 0 sacks of alfalfa
D. 0 sacks of soybeans and 2 sacks of alfalfa

Mathematics

Solve.-  = 

A. m = - 
B. m = 
C. m = - 
D. m = -4

Mathematics

Classify the angle as acute, obtuse, right, or straight.

A. Acute B. Right C. Obtuse D. Straight

Mathematics

Solve the problem.A serving of snack crackers contains 2 grams of protein in each 31 gram serving. How many milligrams of protein are in 6 servings?

A. 37,200 mg B. 1200 mg C. 372 mg D. 12,000 mg

Mathematics