Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 7k3q4 
B. 7q4 
C. 7k7q8 
D. 7k3q4 
Answer: D
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Divide using long division.
A. 3x - 7 B. 3x - 1 C. 3x + 7 D. 3x + 1
Use a ruler, protractor, and compass to construct, when possible, a triangle with the stated properties. Determine whether one triangle can be constructed, two or more noncongruent triangles can be constructed, or no triangle can be constructed.A triangle with sides of length 23 cm and 5 cm and a nonincluded angle of 47°.
A. No triangle can be constructed. B. Exactly one triangle can be constructed. C. Two or more noncongruent triangles can be constructed.
Solve the problem.When making a telephone call using a calling card, a call lasting 5 minutes costs $1.50. A call lasting 12 minutes costs $2.90. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of making a call lasting x minutes.
A. y = -0.2x + 2.5
B. y = 5x - 
C. y = 0.2x + 0.5
D. y = 0.2x - 9.1
Choose the most reasonable measurement for the situation described.Tonya measured the length of her bookshelf. Choose the most reasonable measurement.
A. 63.8 m B. 63.8 mm C. 63.8 km D. 63.8 cm