Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 5°
A. 0.28
B. -0.28
C. 1.00
D. -1.00
Answer: C
Mathematics
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Solve.49t3 + 20t = 84t2
A. 
, 
B. 
, 
C. 0, 
, 
D. 0, - 
, - 
Mathematics
Find the phase shift of the function.y = -5 cos (2x + ?)
A. 
units to the left
B. 5? units to the right
C. 2? units to the right
D. 
units to the left
Mathematics
Factor completely. If the polynomial is prime, state so.z2 + 2z + 1
A. (z - 1)2 B. (z + 1)(z - 1) C. (z + 2)(z - 2) D. (z + 1)2
Mathematics
Graph the circle.(x - 5)2 + (y - 3)2 = 25
A. 
B. 
C. 
D. 
Mathematics