Write the number in standard form.8.45 × 10-4
A. 0.000845
B. -845,000
C. 0.00845
D. 0.0000845
Answer: A
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Subtract the polynomials. Express your answer in standard form.(3m + 8m3) - (-5 - 4m - 3m3)
A. 5m3 + 7m - 5 B. 5m3 + 7m + 5 C. 11m3 + 7m - 5 D. 11m3 + 7m + 5
Write an inequality involving the variable x that describes the set of numbers graphed.
A. -3 ? x ? 1 B. -3 < x ? 1 C. -3 ? x < 1 D. -3 < x < 1
Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.log354 - log32
A. log354 1/2 B. log352 C. log3108 D. 3
Graph the function by hand. Use the graph to (a) find the range, (b) give the interval over which the function is increasing, and (c) give the interval over which the function is decreasing. Round approximations to two decimal places.f(x) = 
A. (a) [0, ?) (b) None (c) (-?, 4) B. (a) (-?, ?) (b) None (c) (-?, ?) C. (a) [0, ?) (b) {4} (c) (-?, 4) D. (a) (-?, 4) (b) None (c) (-?, 4)