Simplify the expression.
A. 7
B. 8
C. -8
D. -7
Answer: D
Mathematics
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Answer the question.What value of n will make xn a perfect cube?
A. It is not possible for any n. B. n must be a multiple of 5. C. n must be a multiple of 2. D. n must be a multiple of 3.
Mathematics
Solve the problem.Two 6-sided dice are rolled. What is the probability the sum of the two numbers on the dice will be 5?
A. 
B. 
C. 
D. 4
Mathematics
Find the derivative of the function.y = 
A. 
= - 
+ 
- 
B. 
= -27x10 + 12x7 - 3x4
C. 
= 
- 
+ 
D. 
= - 
+ 
- 
Mathematics
Solve.The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 4 lb B. 1 lb C. 2 lb D. 3 lb
Mathematics