In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to 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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Place the correct symbol, < or >, in the blank between the decimals. -31.06  -31.3

A. > B. <

Mathematics

Choose the equation that matches the graph.

A.  -  = 1
B.  +  = 1
C.  -  = 1
D.  +  = 1

Mathematics

Use the formula v = r? to find the value of the missing variable. Give an exact answer unless otherwise indicated.r = 4 cm, ? =  radian per sec

A.  cm per sec
B.  cm per sec
C. 12? cm per sec
D.  cm per sec

Mathematics

Use the discriminant to decide whether the equation represents a parabola, an ellipse, or a hyperbola.6x2 - 3y2 + 3x + 10y + 2 = 0

A. Ellipse B. Hyperbola C. Parabola

Mathematics