Evaluate the expression using the given values.vt + 
at2; v = 31, t = 1.2, a = -12.5
A. 28.2
B. 28
C. 29.4
D. 28.4
Answer: A
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Solve the problem.A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of 
What dimensions yield the minimum surface area? Round to the nearest tenth, if necessary.
A. 4 ft by 4 ft by 2 ft B. 8.1 ft by 8.1 ft by 0.5 ft C. 3.2 ft by 3.2 ft by 3.2 ft D. 4.6 ft by 4.6 ft by 1.5 ft
Use the rules of exponents to simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive real numbers.-5k1/8(-4k3/8 + 8k3/4)
A. 20k3/64 - 40k3/32 B. 20k1/2 - 40k7/8 C. 20k-1/4 + 40k-5/8 D. 20k1/2 + 40k7/8
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Solve the problem.The perimeter of a rectangle is 24 cm. One side is 6 cm longer than the other side. Find the lengths of the sides.
A. 3, 6 B. 3, 9 C. 5, 11 D. 6, 12