Evaluate the expression.
?

?

A.
B.
C.
D.
E.


Answer: B

Mathematics

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Find the equation of the hyperbola satisfying the given conditions.Vertices at (0, 4) and (0, -4); foci at (0, 9) and (0, -9)

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

Mathematics

Evaluate the requested trigonometric function using the information given. csc ? = - ; 3?/2 < ? < 2?Find cos ?.

A. - 
B.
C.
D. - 

Mathematics

For the given rectangular equation, write an equivalent polar equation.y = x

A. sin ? = - cos ? B. r = sin ? C. r = cos ? D. sin ? = cos ?

Mathematics

Subtract. Write a mixed numeral for the answer.

A. 127
B. 13
C.
D. 10

Mathematics