Find the actual sum.-5.075 + (-2.460)
A. 12.485
B. 2.615
C. 7.535
D. -7.535
Answer: D
Mathematics
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Find an equation for the hyperbola described. Graph the equation.Center at (0, 0); focus at (, 0); vertex at (8, 0)
A. -
= 1
B. -
= 1
C. -
= 1
D. -
= 1
Mathematics
Solve.A rotating beacon is located a distance d from a long wall. The distance d is given by , where t is the time measured in seconds since the beacon started rotating. Solve the equation for t.
A. t = 2? tan
B. t = tan
C. t = 2? arctan
D. t = arctan
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.csc ? = - , tan ? > 0Find cos
.
A.
B. -
C.
D. -
Mathematics
Evaluate the following expression. ? cot2t (2 sec2t - 2) ?
A. 2 B. 0 C. 3 D. 4 E. 1
Mathematics