Suppose it takes 11 hours to fill a rectangular swimming pool of uniform depth. How long will it take to fill a similarly shaped swimming pool if all of the dimensions are doubled?
?
A. 88 hr.
B. 22 hr.
C. 11 hr.
D. 44 hr.
E. 176 hr.
Answer: A
Mathematics
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Which of the following is not possible for the slope of the line containing the points: (-4,5) and (-2,1)? ?
A. ?The slope is negative. B. ?The slope is -2. C. ?The slope is positive. D. ?The slope is found using the formula . E. ?None of the above.
Mathematics
Factor completely. If the polynomial is prime, state so.x10 - 25y8
A. (x5 - 5y4)2 B. (x5 - 5y4)(x5 + 5y4) C. (x5 + 5y4)(x5 - 5y2)(x5 + 5y2) D. prime
Mathematics
Provide an appropriate response.Given matrix A:A = 
What is the size of A?
A. 3 B. 3 × 2 C. 3 × 3 D. 2 × 3
Mathematics
Solve.7x - 2(3x + 5) = -12
A. -22 B. -2 C. 2 D. 22
Mathematics