Use a formula to solve the problem.A square plywood platform has a perimeter which is 7 times the length of a side, decreased by 6. Find the length of a side.
A. 1
B. 5
C. 3
D. 2
Answer: D
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Solve the problem.Consider the quadratic model h(t) = -16t2 + 40t + 50 for the height (in feet), h, of an object t seconds after the object has been projected straight up into the air. Find the maximum height attained by the object. How much time does it take to fall back to the ground? Assume that it takes the same time for going up and coming down.
A. maximum height = 50 ft; time to reach ground = 2.5 seconds B. maximum height = 75 ft; time to reach ground = 2.5 seconds C. maximum height = 75 ft; time to reach ground = 1.25 seconds D. maximum height = 50 ft; time to reach ground = 1.25 seconds
Solve the problem.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 100 black, 110 white and 90 red wires. How many of each cable were made?
A. 10 cable A 30 cable B 93 cable C B. 10 cable A 30 cable B 20 cable C C. 20 cable A 30 cable B 10 cable C D. 10 cable A 103 cable B 20 cable C
Convert the mass or weight as indicated. Round the answer to two decimal places if necessary.6 ounces to grams
A. 0.24 g B. 170.1 g C. 13.2 g D. 2.7 g
Classify the number as rational or irrational.
A. Rational B. Irrational