Solve the logarithmic equation.log9 (x - 8) + log9 (x - 8) = 1
A. 11
B. -
, 
C. -11, 11
D. 
Answer: A
Mathematics
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Describe the given set of points with a single equation or with a pair of equations.The set of points equidistant from the points (0, 0, -9) and (0, 0, 11)
A. z > -9 and z < 11 B. x + y = 1 C. x + y = 0 and -9 < z < 11 D. z = 1
Mathematics
Write as a unit rate.711 miles in 9 hours
A. 6399 miles B. 79 miles C. 79 miles/hour D. 720 miles/hour
Mathematics
Multiply. Assume all variables represent nonnegative real numbers.
(
- 
)
A. 11 - 5
B. 11 - 
C. 11 + 11
D. 11 - 11
Mathematics
Solve the equation.-7c = 15 - 8c
A. - 
B. -15
C. 15
D. 0
Mathematics