Find the vertex and axis of symmetry of the graph of the function.f(x) = x2 + 6x
A. (3, -9); x = 3
B. (-3, -9); x = -3
C. (9, -3); x = 9
D. (-9, 3); x = -9
Answer: B
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Find the indicated product.(a + 6b)(x + y)
A. ax + 8bx + ay + 7by B. ax + 6bx + ay + by C. ax + 6bx + ay + 6by D. ax + 7bx + ay + 6by E. ax + bx + ay + 7by
Perform the indicated operations and simplify the result. Leave the answer in factored form.
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A. 9 B. 81 C. 7x D. 0
Solve the problems.Michelle earns 10% of the net profit in commission on advertising sales for a magazine. If she receives $860.20 as a commission, what was the net profit on her sales?
A. $43,010.00 B. $8,602.00 C. $4,301.00 D. $21,505.00
Solve the problem.The annual precipitation for one city is normally distributed with a mean of 289 inches and a standard deviation of 3.2 inches. In what percentage of years is the rainfall greater than 295.4 inches?
A. 5% B. 2.5% C. 34% D. 16%