Add, subtract, or multiply, as indicated. Express your answer as a single polynomial in standard form.(8x2 + 9x + 6) + (2x2 - 6x + 9)

A. 8x2 + 2x + 18
B. 10x2 + 3x - 15
C. 10x2 - 3x + 15
D. 10x2 + 3x + 15


Answer: D

Mathematics

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Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse centered at the origin having vertex at (0, -9) and eccentricity equal to  

A.  +  = 1
B.  +  = 1
C.  -  = 1
D.  -  = 1

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Using the appropriate right triangle, find the exact value of the trigonometric expression.sec 45°

A. 1
B.
C.
D.

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Write the given integers in order from least to greatest.|-1|, -|-3|, -(-3), -|1|

A. -(-3), |-1|, -|1|, -|-3| B. -|-3|, -|1|, |-1|, -(-3) C. -|-3|, |-1|, -|1|, -(-3) D. -(-3), -|1|, |-1|, -|-3|

Mathematics

In the list of terms, identify the numerical coefficient of each term in the order given and determine whether the terms are like or unlike.3.10x3y2z4, -8x3z4

A. 3, 4 like B. 3.10, -8; unlike C. 3, 2, 4; unlike D. 3.10, -8; like

Mathematics