Use the information given about the angle ?, to find the exact value of the indicated trigonometric function.tan ? = , 0 < ? <  Find cos 2?.

A.
B.
C. - 
D. - 


Answer: C

Mathematics

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Find the domain and range of the function graphed.

A. domain: (-?, ?); range: (-?, ?) B. domain: (-?, ?); range: (-?, -1) ? (-1 ?) C. domain: {-1}; range: (-?, ?) D. domain: (-?, -1) ? (-1, ?); range: (-?, ?)

Mathematics

Tell whether or not the relation is a function.{(-1,-2), (3,6), (5,4), (8,-7), (12,6)}

A. Yes B. No

Mathematics

Solve the problem.Find the perimeter of the geometric figure.Triangle: sides2r2 + 5r r3 + r2 + 4 5r + 9

A. r3 + 3r2 + 10r + 13 B. 3r3 + 11r + 13 C. r3 + 2r2 + 11r + 13 D. 3r3 + r2 + 10r + 13

Mathematics

Solve the problem. Write the answer in lowest terms and as a whole or mixed number where possible.Layer Cake A is  yard long and  yard wide. Layer Cake B is  yard long and  wide. Which cake has the larger area?

A. Layer Cake A B. Layer Cake B

Mathematics