Solve the problem.A propeller on a wind generator rotates 1.24 rad in 1.5 s. How many degrees does the propeller rotate in 
A. 142°
B. 0.022°
C. 71.0°
D. 35.5°
Answer: C
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State the phrase as a mathematical expression. Use x to represent the variable.Eight times a number, added to 39
A. 8 ? 39 + x B. 8(x + 39) C. 8x D. 8x + 39
Solve using elimination.
A. x = -2, y = -3; x = -3, y = -2 or (-2, -3), (-3, -2) B. x = 2, y = 3; x = -2, y = 3 ; x = 2, y = -3; x = -2, y = -3 or (2, 3), (-2, 3), (2, -3), (-2, -3) C. x = 2, y = 3; x = 3, y = 2; x = -2, y = -3; x = -3, y = -2 or (2, 3), (3, 2), (-2, -3), (-3, -2) D. x = 2, y = -3; x = 2, y = 3 or (2, -3), (2, 3)
Using the factors ( x - 1 ) and ( x - 4 ) find the remaining factor(s) of 
and write the polynomial in fully factored form.
a. 
b. 
c. 
d. 
e. 
Verify that the matrix is invertible and find its inverse.A = 
A. A-1 = 
B. A-1 = 
C. A-1 = 
D. A-1 = 