Use addition to check the subtraction problem. If the answer is incorrect, find the correct answer.
A. Correct
B. Incorrect; should be 7089
C. Incorrect; should be 7179
D. Incorrect; should be 8079
Answer: A
Mathematics
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Multiply the monomials.(-2x5)(2x8)
A. 4x40 B. -4x13 C. -4x40 D. 4x13
Mathematics
The stopping distance D of a car after the brakes have been applied varies directly as the square of the speed s. A certain car traveling at 50 mi/h can stop in 240 ft. What is the maximum speed it can be traveling if it needs to stop in 150 ft? Round your answer to one decimal place.
What will be an ideal response?
Mathematics
Add and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Factor completely.6a3 + 9a2b - 8ab2 - 12b3
A. (6a2 - 4b2)(a + 3b) B. (3a2 - 4b2)(2a + 3b) C. (3a2 + 4b2)(2a - 3b) D. (3a2 - 4b)(2a + 3b)
Mathematics