Evaluate the expression.Determine the number of combinations of 14 things taken 8 at a time.
A. 60,540,480
B. 1440
C. 2,162,160
D. 3003
Answer: D
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Solve the problem.The lifespan for a pair of walking shoes is normally distributed with a mean of 
steps and standard deviation of 
steps. If a manufacture produces 6000 pairs of these shoes, how many can be expected to last for at least 732,800 steps?
A. ? 1391 pairs B. ? 1313 pairs C. ? 1205 pairs D. ? 1271 pairs
Add or subtract. Express the answer as a mixed number.13
- 6
A. 18
B. 6
C. 19
D. 6
Find the inverse of the matrix.
?
What will be an ideal response?
Solve the problem.The temperature in Fairbanks is approximated by T(x) = 37 sin [
(x - 101)] + 25,where T(x) is the temperature on day x, with x = 1 corresponding to 
and x = 365 corresponding to Dec. 31. Estimate the temperature on day 320.
A. 3° B. 323° C. -22° D. -25°