Solve the problem.A map has a scale of 3 miles to the inch. How far apart in reality are two cities that are 21 inches apart on the map?
A. 54 in.
B. 63 mi.
C. 6 in.
D. 7 mi.
Answer: B
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Factor the polynomial using the negative of the greatest common factor.-35a2b3 + 21ab
A. -7a(5ab3 - 3b) B. 7ab(-5ab2 + 3) C. -7ab(5ab2 + 3) D. -7ab(5ab2 - 3)
Solve the problem.Find the dimensions of a rectangle whose perimeter is 32 feet and whose area is 60 square feet.
A. 6 feet by 10 feet B. 7 feet by 9 feet C. 5 feet by 9 feet D. 5 feet by 11 feet
A toy making company has at least 300 squares of felt, 700 oz of stuffing, and 230 ft of trim to make dogs and dinosaurs. A dog uses 1 square of felt, 4 oz of stuffing, and 1 ft of trim. A dinosaur uses 2 squares of felt, 3 oz of stuffing, and 1 ft of trim.It costs the company $1.01 to make each dog and $1.33 for each dinosaur. The company wants to minimize its costs. What are the coefficients of the dual objective function?
A. 1, 4, 1 B. 300, 700, 230 C. 1, 2, 1.01 D. 1.01, 1.33
Match the graph to the function.
A. f(x) = -2x B. f(x) = 2-x C. f(x) = -2-x D. f(x) = 2x