Simplify the radical.
A. 64
B. 3
C. 2
D. 4
Answer: D
Mathematics
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Divide.
A. 2
B. 3
C. 
D. 
Mathematics
Provide an appropriate response.Assume x = x(t) and y = y(t). Find 
and 
= 3 when 
and 
A. 6 B. -4 C. -6 D. 4
Mathematics
Use an appropriate identity to find the exact value of the expression.cos (-105°)
A. 
B. - 
C. 
D. 
Mathematics
Solve the problem.Tides go up and down in a 14-hour period. The average depth of a certain river is 14 m and ranges from 11 to 17 m. The depth of the river can be approximated by a sine curve. Write an equation that gives the depth x hours after midnight given that high tide occurs at 7:00 am.
A. d = 3 sin 
+ 1
B. d = 3 sin 
+ 14
C. d = 7 sin 
D. d = 3 sin 
+ 14
Mathematics