Solve the logarithmic equation.log9 (x2 - 8x) = 1
A. 1
B. 9, -1
C. -9, 1
D. 9
Answer: B
Mathematics
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Find the simple interest. (The rate is an annual rate unless otherwise noted. Assume 360 days in a year.)p = $61,600, r = 7%, t = 3 months
A. $107,800.00 B. $1078.00 C. $12,936.00 D. $1437.33
Mathematics
Evaluate 
What will be an ideal response?
Mathematics
Solve the problem.A bridge is built in the shape of a semielliptical arch. It has a span of 120 feet. The height of the arch 27 feet from the center is to be 7 feet. Find the height of the arch at its center.
A. 15.56 ft B. 7.18 ft C. 27.19 ft D. 7.84 ft
Mathematics
Solve the equation and check the solution.-9 = -7x - 12 + 8x
A. x = -21 B. x = 21 C. x = -3 D. x = 3
Mathematics