Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.82 ? 83
A. 646
B. 645
C. 86
D. 85
Answer: D
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We have $55.71 to spend on drinks and chips. Drinks cost $0.74 each and chips cost $2.49 per bag. There are 5.00 times as many drinks as bags of chips. How many of each are bought? Round your answers to two decimal places. ?
A. 60.00 drinks and 12.00 bags of chips B. 9.00 drinks and 45.00 bags of chips C. 45.00 drinks and 9.00 bags of chips D. None of the above
The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. v (ft/sec)
When does the body reverse direction?
A. t = 4, t = 7 sec B. t = 7 sec C. t = 2, t = 3, t = 5, t = 6, t = 7 sec D. t = 4 sec
Write the phrase as a mathematical expression. Use x as the variable.397 divided by some number
A. 397 + x
B. 397 - x
C. 397x
D. 
Convert the measurement as indicated.129 in. to feet(Write your answer as a decimal.)
A. 10.75 ft B. 1,548 ft C. 1 ft D. 387 ft