Use the product-to-sum or sum-to-product identities to find an identity for the given expression.4 cos 11? sin 13?
A. 1(sin 24? - sin 2?)
B. cos 24? + cos 2?
C. 2(-sin 24? - sin 2?)
D. 2(sin 24? + sin 2?)
Answer: D
Mathematics
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Solve the equation by factoring.2x2 - 10 = 0
A. {6}
B. {-
, 
}
C. {-5, 5}
D. {5}
Mathematics
Solve and graph.-5x + 1 ? 11 or 4x + 3 ? -13
A. [-4, ?)
B. (-?, ?)
C. [-4, -2]
D. [-2, ?)
Mathematics
Find the corner points for the set of feasible solutions for the constraints given in problem.
?
?
?
A. ( 0, 0 ), ( 6, 12 ), ( 6, 0 ) B. ( 0, 6 ), ( 0, 12 ), ( 6, 12 ), ( 6, 0 ), ( 4, 0 ) C. ( 0, 0 ), ( 0, 12 ), ( 6, 12 ), ( 6, 0 ) D. ( 0, 0 ), ( 4, 0 ), ( 0, 6 ) E. (0, 0), ( 0, 6 ), ( 0, 12 ), ( 6, 0 ), ( 4, 0 )
Mathematics
Simplify the given expression.-35
A. -15 B. -243 C. 15 D. 243
Mathematics