Solve.4x + 2y - 3z = 72x + 4y + z = 356x + 2y - 2z = 20

A.
B.
C.
D.

Answer: D

Mathematics

Solve the problem.If x = 5 sin ?, show that = 5 cos ?.

What will be an ideal response?

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Mathematics

Use an equation to solve the percent problem.325.6 is what percent of 44?

A. 7.4% B. 13.51% C. 1.35% D. 740%

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Mathematics

Find the product of the two binomials.

A. x² + 21
B. x² - x + 21
C. x² - 21
D. x² + x - 21

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Mathematics

Simplify using the product rule.(6x9)(-4x7)

A. 24x63 B. -24x63 C. -24x16 D. 24x16

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Mathematics