Solve the problem.Two pipes can be used to fill a pool. Working together, the two pipes can fill the pool in 
The larger pipe can fill the pool in 4 hours less time than the smaller pipe can alone. Find the time to the nearest tenth of an hour it takes for the smaller pipe working alone to fill the pool.
A. 8.7 hr
B. 4.7 hr
C. 4.6 hr
D. 8.6 hr
Answer: D
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Let v and w be two vectors in the plane with given magnitudes. The angle between v and w is ?. Find the expression. Round the answer to the nearest tenth.
= 11, 
= 9, ? = 70°
Find 
A. 24.1 B. 21.1 C. 17.6 D. -106.4
Decide whether the slope is positive, negative, zero, or undefined.
A. Zero B. Negative C. Positive D. Undefined
Determine if the given ordered pair is a solution to the equation.y = 
, (-6, 8)
A. Yes B. No
Find the periodic payment R required to accumulate a sum of S dollars over t years with interest earned at the rate of r%/year compounded m times a year. Round your answer to the nearest cent.
S = 110,000, r = 4.5, t = 22, m = 4 a. R = $700.71 b. R = $714.66 c. R = $680.84 d. R = $738.19