Solve the problem.Two pipes can fill a large tank in 10 hours. One of the pipes, used alone, takes 15 hours longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 12.5 hr for one
25 hr for the other
B. 10 hr for one
20 hr for the other
C. 15 hr for one
30 hr for the other
D. 25 hr for one
50 hr for the other
Answer: C
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Determine whether F is conservative.F(x,y) = (x + 4y - 6)i + (-4x + 7y2 + 8)j
A. conservative B. not conservative
Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y2(1 - 2x), y(-1) = -1, dx = 0.5
A. y1 = 0.7, y2 = 0.99, y3 = 1.2656 B. y1 = 0.5, y2 = 0.75, y3 = 1.03125 C. y1 = 0.7, y2 = 0.99, y3 = 1.9136 D. y1 = 0.4, y2 = 0.63, y3 = 0.7472
Translate the question into a proportion. Do not solve.55% of what number is 8.7?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Multiply. Change any mixed number to an improper fraction before multiplying.5
? 6
A. 11
B. 30
C. 35
D. 180