Express the product as a sum or difference.sin 7x cos 4x

A. sin (cos 28x2)
B. (sin 11x + sin 3x)
C. (sin 11x + cos 3x)
D. (cos 11x - cos 3x)


Answer: B

Mathematics

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A project consists of seven independent tasks with processing times (in hours) given by 3, 4, 4, 5, 7, 7, and 11.Find the finishing time Fin for N = 3 processors using the critical-path algorithm.

A. Fin = 12 hours B. Fin = 16 hours C. Fin = 15 hours D. Fin = 11 hours E. Fin = 14 hours

Mathematics

Solve.11(x - 2) + (x - 18) = (x + 2)(x - 6)

A. 2, -14 B. 2, 14 C. -2, 14 D. -2, -14

Mathematics

Provide an appropriate response.Find the solution to the following equation, given the y value is 4: 2x - 3y = 9

Fill in the blank(s) with the appropriate word(s).

Mathematics

Factor.18x2 - 15xy - 25y2

A. (3x - 5y)(6x + 5y) B. (3xy - 5)(6xy + 5) C. (18x - 5y)(x + 5y) D. (3x + 5y)(6x + 5y)

Mathematics