Solve the problem.On a test, Sunita has an x percent chance of correctly answering a question for which she has not studied. The chance that she will correctly answer a question for which she has studied is 6x. She is happy to see that both of the first two questions on the test are questions for which she has studied. The chance that she doesn't answer either of these questions correctly is (1 - 6x)2, where x is expressed as a decimal. For
, evaluate the polynomial that results when this expression is multiplied.
A. 0.76
B. 0.19
C. 0.16
D. 0.64
Answer: C
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Solve the problem.A truck rental company rents a moving truck one day by charging $27 plus $0.09 per mile. Write a linear equation that relates the cost C, in dollars, of renting the truck to the number x of miles driven. What is the cost of renting the truck if the truck is driven 120 miles?
A. C(x) = 0.09x - 27; -$16.20 B. C(x) = 0.09x + 27; $28.08 C. C(x) = 0.09x + 27; $37.80 D. C(x) = 27x + 0.09; $3240.09
Solve the problem.Seven slips of paper marked with the numbers 1, 2, 3, 4, 5, 6, and 7 are placed in a box and mixed well. Two are drawn. What are the odds that the sum of the numbers on the two selected slips is not 5?
A. 21 : 2 B. 9 : 1 C. 19 :2 D. 19 :1
Solve the quadratic equation using completing the square.n2 = 8n - 15
A. no real solution B. {3} C. {-5, -3} D. {3, 5}
Evaluate the expression.4w2for w = -4
A. 256 B. -64 C. 64 D. 20