Use an identity to find the value of the expression. Do not use a calculator.cos 46° sec 46°
A. cos2 46°
B. 1
C. 46
D. 0
Answer: B
Mathematics
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Find y '.y = 
A. 2x + 
B. 2x + 
C. 2x + 
D. 2x - 
Mathematics
Write the augmented matrix for the system.
A. 
B. 
C. 
D. 
Mathematics
e = 6.91 v. Find EPK when é = 47ø.
a. 9.45 V b. 10.13 V c. 5.05 V d. 4.7 V e. 14.62 V
Mathematics
Solve the compound inequality.6x + 9 < 4 and 3x - 4 > 9
A. - 
< x < 
B. No solution
C. - 
< x < 
D. x < - 
or x > 
Mathematics