In the problem, P = (x, y) is the point on the unit circle that corresponds to the real number t. Find the exact value of the indicated trigonometric function of t.
?Find cos t.
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Express the limit as a definite integral.
?xk; [-3, 3]
A. 
B. 
C. 
D. 
Mathematics
Graph the exponential function.y = 2.982-x
A. 
B. 
C. 
D. 
Mathematics
Solve.A construction company incurred the following expenses on a job: gravel, $92.48; sand, $51.43; cement, $202.29; bricks, $240.82; and labor, $658.35. If the company charged $1600 for the job, what was the profit?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the focus and directrix of the parabola with the given equation.y2 = -28x
A. focus: (0, -7) directrix: y = 7 B. focus: (-7, 0) directrix: x = 7 C. focus: (-7, 0) directrix: y = 7 D. focus: (7, 0) directrix: x = -7
Mathematics