Solve the problem.The number of gallons of water in a swimming pool t minutes after the pool has started to drain is 
How fast is the water running out at the end of 10 minutes?
A. 2500 gal/min
B. 5000 gal/min
C. 500 gal/min
D. 1000 gal/min
Answer: D
Mathematics
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Give the degree measure of ?.? = arctan 
A. 330° B. -30° C. 150° D. 30°
Mathematics
Solve.Manuel had $1361.16 in his checking account. He wrote checks of $40.65, $53.93, and $107.89 to pay some bills. He then deposited a paycheck of $800.15. How much is in his account after these changes?
A. $1973.95 B. $2363.78 C. $1958.84 D. $358.54
Mathematics
Find the vertices of the hyperbola. 3x2 - y2 = 48
A. (0, 4) and (0, -4) B. (0, 3) and (0, -3) C. (16, 0) and (-16, 0) D. (4, 0) and (-4, 0)
Mathematics
Express the number in terms of i.
A. 50i
B. -50i
C. i
D. ±50
Mathematics