Solve.There are currently 76 million cars in a certain country, decreasing by 3.1% annually. How many years will it take for this country to have 59 million cars? (Round to the nearest year.)
A. 17 yr
B. 5 yr
C. 8 yr
D. 91 yr
Answer: C
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Solve the problem.The average of a data set consisting of 11 numbers is 6. The smallest of the numbers is Min = 1. If Max is the largest of the numbers in the data set, which of the following could be a possible value of Max?
A. 65 B. 6.4 C. 6.6 D. 6 E. none of these
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
Find the product.5x3(-2x - 11)
A. -10x - 55 B. -10x4 - 11 C. -10x4 - 55x3 D. -65x3
Factor the trinomial.n2 + 4n - 60
A. (n - 60)(n + 1) B. (n - 10)(n - 6) C. (n - 10)(n + 6) D. (n + 10)(n - 6)