Use the unit circle to find the indicated quantities.
sin 4?; cos 4?
A. 1; 0
B. -1; 0
C. 0; -1
D. 0; 1
Answer: D
Mathematics
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Divide and simplify.14x4 ÷ 
A. 49x B. 4x C. 4x7 D. 49x7
Mathematics
Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. 5x + 8y = 30-2x - 2y = -12
A. (5, 1) B. (6, 1) C. (6, 0) D. No solution
Mathematics
Write as the sum and/or difference of logarithms. Express powers as factors. log9
A. log9y - log911 - 
log9x
B. log911 ? 
log9m ÷ log9y
C. log911 + 
log9x - log9y
D. log9(11
) - log9y
Mathematics
Find the average of the numbers.93, 27, 45, 75
A. 60 B. 213 C. 240 D. 120
Mathematics