Perform the indicated operation and simplify. Write the answer in the form a + bi.(5 - 8i)2

A. 25 - 16i
B. -39 - 80i
C. 89 - 80i
D. 25 - 144i


Answer: B

Mathematics

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Find the particular solution to the given differential equation that satisfies the given conditions.y'' + 4y = 0, y = 3 at x = 0 and y = 5 at x = ?/4

A. y = ex(5 sin 2x + 3 cos 2x) B. y = (3 + 5x)e2x  C. y = 5 sin 2x + 3 cos 2x D. y = 3 sin 2x + 5 cos 2x

Mathematics

Perform the indicated operations, and write the answer in scientific notation.

A. 3 × 10-1 B. 3 × 109 C. 3 × 101 D. 3 × 102

Mathematics

Solve and graph.4x > 4 and x + 5 < 5

A. (0, 1)

B. (-1, ?)

C. (-1, 0)

D. ?

Mathematics

Solve using the elimination method. Use a graphing calculator to check your answer. 2x + 8y = 10 4x = 8 - 16y

A. (7, 9) B. (-3, 2) C. (-3, 9) D. No solution

Mathematics