Add or subtract, if possible. Assume that all variables represent non-negative values and be sure to simplify your answer.
+ 
A. 
B. 
C. 
w
D. 
+ 
Answer: A
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At one high school, the mean time for running the 100-yard dash is 
with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Between 16.1 and 17 seconds
A. 34% B. 13.6% C. 12% D. 27%
Create the requested drawing.The given figure illustrates a three-step fractal recursive process using the letter M. Using a similar progression, construct fractals with the letter Y.
What will be an ideal response?
Solve the problem.Find the polar coordinates of the point(s) of intersection of the given curves for 
r1 = 4, r2 = 4 + sin ?
A. (0, 0), (0, 4), (?, 4) B. (0, 4), (?, 4) C. (0, 0), (4, 0), (4, ?) D. (4, 0), (4, ?)
First use front-end rounding to write an estimate of the answer, and then multiply fully to obtain an exact answer.EstimateProblem
?
A. Estimate: 4.8, exact: 5.104136 B. Estimate: 480, exact: 5,104.136 C. Estimate: 48, exact: 51.04136 D. Estimate: 480, exact: 510.4136