Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions.log10(1,000x)
A. 3x
B. 3 log10 x
C. 3 + log10 x
D. 30 + log10 x
Answer: C
Mathematics
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Solve the problem.There are 6 singers in a competition. In how many ways can first, second, and third prizes be awarded?
A. 18 B. 20 C. 216 D. 120
Mathematics
Find the x-intercepts for the parabola whose equation is given. If the x-intercepts are irrational, round your answers to the nearest tenth.y = -x2 + 9x - 20
A. x-intercepts (4, 0) and (5, 0) B. x-intercepts (4, 0) and (-5, 0) C. x-intercepts (-4, 0) and (-5, 0) D. No x-intercepts
Mathematics
Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the 
. y = 
, y = 0, 0 ? x ? 
A. 6?
B. 2?
C. 12?
D. 
?
Mathematics
Evaluate the piecewise-defined function at the indicated value.f(x) = 
; f(-2)
A. -4 B. 14 C. -9 D. 11
Mathematics