Write an augmented matrix for the system of equations. 8x + 4y + 2z = 26 9x + 9y + 3z = 60 8x + 3y + 2z = 20

A.

B.

C.

D.


Answer: B

Mathematics

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Add or subtract, as indicated.-6.463 + (-7.925)

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Use sum-to-product formulas to rewrite the expression as a product.sin 6x + sin 2x

A. 2 sin 4x sin 2x B. 2 sin 8x C. 2 sin 4x cos 2x D. 2 cos 4x sin 2x

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The following figure is divided into regions of equal area. Write a fraction that represents the shaded portion of the figure. Then write the fraction in simplest form.

A.
B.
C.
D.
E.

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Write a signed number for the statement.29 degrees above zero

A. -29 degrees B. 29 degrees

Mathematics