Simplify the expression.
A. 
B. 
C. 
D. 
Answer: B
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Solve the problem.When an object falling from rest encounters air resistance proportional to the square of its velocity, the distance it falls (in meters) after t seconds is given by
where m is the mass of the object in kilograms, g = 9.8 m/s2 is the acceleration due to gravity, and k is a physical constant. A BASE jumper 
leaps from a tall cliff and performs a ten-second delay (she free falls for 10 s and then opens her chute). How far does she fall in 10 s? Assume 
style="vertical-align: -4.0px;" /> Round the answer to one decimal place if necessary. A. 72.4 m B. 14.5 m C. 331.2 m D. 361.9 m
Solve the problem.Jill would like to make a purchase at a clothing store. The charges for the items that she has selected are shown below. If she has $80, does she have enough? If not, then how much more does she need?
A. Yes B. No; $7.42 C. No; $6.21 D. No; $0.05
Find 
.exy = sin x
A. 
B. 
C. 
D. 
Provide an appropriate response.A smaller standard deviation indicates that the mean is a typical value in the data set.
A. True B. False