Without using a calculator, determine the value of the trigonometric function or state that the value is undefined.sin (18?)
A. 1
B. -1
C. 0
D. undefined
Answer: C
Mathematics
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Find a Cartesian equation for the line whose polar equation is given.r cos
= 4
A. y = x + 4
B. y = x - 8
C. y = 
x - 8
D. y = x + 4
Mathematics
Solve the problem.Find the derivative of the function 
at the point 
in the direction in which the function decreases most rapidly.
A. -9 B. -30 C. -20 D. -10
Mathematics
Use your knowledge of multiplying signed numbers along with the techniques of multiplying decimals to find the product.- 12.7 × (-0.01)
A. 0.127 B. 0.0127 C. -0.127 D. -0.0127
Mathematics
Solve the equation using the quadratic formula.x2 - 14x + 53 = 0
A. {9, 5} B. {7 ± 2i} C. {-7 ± 2i} D. {14 ± 4i}
Mathematics