Solve the problem.Two pumps can fill a water tank in 45 minutes when working together. Alone, the second pump takes 3 times longer than the first to fill the tank. How long does it take the first pump alone to fill the tank?
Fill in the blank(s) with the appropriate word(s).
60 min
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Find the product.(5x - 5y)(5x - 2y + 1)
A. 25x2 - 25xy + 5x + 10y2 - 5y B. 25x2 - 35xy - 35y2 C. 25x2 - 35xy + 5x + 10y2 - 5y D. 25x2 - 10xy + 5x + 10y2
Solve.|2x - 4|= 18
A. 
B. 
C. 
D. 
Answer the question, concerning the use of substitution in integration.If we decide to use u = x2 + e, then which of the following are correct?i) du = 2x dxii)x2 = u - eiii) du = 2ex dxiv) du = 
dx
A. Both i and iv B. Both ii and iii C. Only i D. Both i and ii
Make the indicated conversion between American and metric units of weight and mass using the given property or properties. Round the answer to two decimal places if necessary.13 kilograms to ounces (1000g = 1 kg, 1 g ? 0.035 oz)
A. 36855 B. 455 C. 0.37 D. 1300