Find the foci of the hyperbola.5x2 - y2 = 40
A. (0, 4
) and (0, -4
)
B. (4
, 0) and (-4
, 0)
C. (
, 0) and (-
, 0)
D. (0, 4
) and (0, -4
)
Answer: B
Mathematics
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Perform the indicated operation.2
- 5
A. -45
B. 45
C. -5
D. 5
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Use the graph to complete the identity.cos 2x cos 5x + sin 2x sin 5x = ?
A. y = sin 3x B. y = sin 7x C. y = cos 3x D. y = cos 7x
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Determine if the type of relation is linear, nonlinear, or none.
A. none B. linear C. nonlinear
Mathematics
Use the appropriate identity to find the indicated function value. Rationalize the denominator, if applicable. If the given value is a decimal, round your answer to three decimal places.tan ?, if cot ? = 
A. 
B. 
C. 
D. 
Mathematics