Simplify the expression. Write your answer without negative exponents. Whenever an exponent is negative or zero, assume that the base is not zero.(-9x4y)(-2x2y6)
A. 18x6y7
B. -11x6y6
C. -18x6y6
D. 18x8y6
Answer: A
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Find the domain and range of the inverse of the given function.f(x) = (5x - 3)3
A. Domain: [3, ?); range: [0, ?) B. Domain: [5, ?); range: [0, ?) C. Domain and range: all real numbers D. Domain: [0, ?); range: all real numbers
Solve the problem.The length of time it takes college students to find a parking spot in the library parking lot follows a normal distribution with a mean of 6.5 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 5.0 and 7.5 minutes to find a parking spot in the library lot.
A. 0.2255 B. 0.0919 C. 0.7745 D. 0.4938
Choose the graph of the equation. 
+ 
+ 
= 1
A. 
B. 
C. 
D. 
Express the statement as an equation involving the indicated variables.The surface area S of a cube is 6 times the square of the length x of a side.
A. S = 6x B. S = 6 + x2 C. S = x2 D. S = 6x2