Find the exact value of the expression.cos 
A. 
B. 
C. 
D. 
Answer: A
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Find the general solution of the equation.y'(t) - 
= -17
A. y = C
B. y = Ce20x + 
C. y = Cex/20 + 340
D. y = Cex/20 - 340ex
Find the mean, median, and mode. Round to the nearest tenth when necessary.Given these box scores: -4, -2, 6, 9
A. 2.3, 2, -2 B. 1.8, 2, 6 C. 2.3, 2, none D. 0, 2, none
Solve the problem.It is recommended that a woman who is pregnant should exercise such that her heart rate does not exceed 140 beats per minute. Use absolute value notation to write an expression that describes the difference between the heart rate achieved by each of the following pregnant women and the recommended maximum heart rate. Then evaluate that expression.(i) Abigail: 134 beats per minute(ii) Mathilda: 149 beats per minute
A. (i) Abigail: 
= 274
(ii) Mathilda: 
= 289
B. (i) Abigail: 
= -6
(ii) Mathilda: 
= -9
C. (i) Abigail: 
= 6
(ii) Mathilda: 
= 9
D. (i) Abigail: 134 - 140 = -6
(i) Mathilda: 149 - 140 = 9
Use the properties of limits to help decide whether the limit exists. If the limit exists, find its value.
A. ?
B. 0
C. - 
D. 