Name the quadrant, if any, in which the point is located.(-13, -7)
A. IV
B. None
C. II
D. III
Answer: D
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Write the expression using exponential notation. Then identify the base and the exponent.(-4x) ? (-4x) ? (-4x) ? (-4x)
A. (-4x)4 base: -4x exponent: 4 B. -4x4 base: 4x exponent: 4 C. (-4x)4 base: 4x exponent: 4 D. -4x4 base: -4x exponent: 4
Arrange the polynomial in descending powers of the variable. Then find its degree and leading coefficient.-9x + 3 + 7x2
A. -9x2 - 7x + 3, degree: 2, leading coefficient: -9 B. -7x2 - 9x + 3, degree: 2, leading coefficient: -7 C. 7x2 - 9x + 3, degree: 2, leading coefficient: 7 D. 7x2 - 12x, degree: 2, leading coefficient: 7
Express as a single logarithm and, if possible, simplify.log4 12 + log4 9
A. log4 21 B. log8 108 C. log8 21 D. log4 108
The table shows, for some particular year, a listing of several income levels and, for each level, the proportion of the population in the level and the probability that a person in that level bought a new car during the year. Given that one of the people who bought a new car during that year is randomly selected, find the probability that that person was in the indicated income category. Round your answer to the nearest hundredth. 
$40,000 - $49,999
A. 0.22 B. 0.25 C. 0.21 D. 0.17