Solve.
= 4
A. {4, -4}
B. {4}
C. {16}
D. {-4}
Answer: A
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Multiply the monomials.
A. 
a3b7c
B. 
a2b12c
C. 
a2b12c
D. 
a3b7c
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 4.0 minutes and a standard deviation of 1 minute. Find the probability that a randomly selected college student will take between 2.5 and 5.0 minutes to find a parking spot in the library lot.
A. 0.0919 B. 0.4938 C. 0.2255 D. 0.7745
Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.1.1x + 0.8y - 2.0z = 2.74.8x - 7.0y - 0.2z = -2.73.7x - 2.0y + 0.2z = 11.0
A. (3.6, 2.7, 2.0) B. (2.4, 1.8, 1.3) C. (1.2, 0.9, 0.7) D. (4.8, 3.6, 2.7)
Solve the equation by making an appropriate substitution.x4 - 20x2 + 64 = 0
A. {4, 16} B. {-2, 2, -4, 4} C. {-2i, 2i, -4i, 4i} D. {2, 4}