Write the expression using exponents.4y ? 4y ? 4y ? 4y ? 4y ? 4y ? 4y
A. 4y7
B. 28y
C. 47y
D. (4y)7
Answer: D
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Use a power regression model for the following data to answer the following question. If x is multiplied by 3, what is the effect on y? Round your answer to two decimal places. x 2.96 4.2 5.71 8.06 8.35 y 6.25 5.04 4.38 1.06 3.97?
A. y is multiplied by 0.30. B. y is multiplied by 0.31. C. y is multiplied by 0.37. D. y is multiplied by 0.45.
Solve the problem.An accountant tabulated a firm's profits for four recent years in the following table: The accountant then fit both a linear graph and an exponential curve (seen below) to the data, in order to estimate future profits. Use the exponential graph to estimate the profits in the year 2001.
A. About $300,000 B. About $750,000 C. About $1,000,000 D. About $1,300,000
Solve.Given that loga2 = 0.3010 and loga3 = 0.4771, find loga
A. 2.0333 B. 0.0512 C. 0.8293 D. 0.1992
Solve and check.
- 5 = 
A. x = -5 B. x = 5 C. x = 0 D. No solution