Write the number in scientific notation.1,565,540
A. 1.56554 x 10-6
B. 1.56554 x 107
C. 1.56554 x 106
D. 1.56554 x 101
Answer: C
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Simplify the given expression. Expansion of any term is not necessary; proper recognition of the form of the expression leads to the proper result.8 cos 4x sin 4x
A. 2 sin 4x B. 4 sin 4x C. 4 sin 8x D. 8 sin 8x
Evaluate.10P3
A. 720 B. 604,800 C. 10,080 D. 360
State whether the graph is or is not that of a function.
A. Yes B. No
Solve the problem.The table shows the population of a certain city in various years. The population of the city f(x), in hundreds of thousands, can be modeled by f(x) = axb, where x represents the number of years since 1995. Estimate the population of the city in the year 2021. (You will first need to use regression to estimate the values of a and b).
A. 1,318,550 B. 1,365,641 C. 1,177,277 D. 1,240,963