Simplify the polynomial by combining like terms if possible. Write the answer in descending order.9x2 - 7 + 3x2 + x2 - 8

A. 12x2 + 15
B. 13x2 - 15
C. 13x4 - 15
D. 11x2 - 15


Answer: B

Mathematics

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A. 1.5 hr B. 2.3 hr C. 2.7 hr D. 144 hr

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State whether the function is linear or quadratic.f(x) = 3x + (1.9)2

A. Linear B. Quadratic

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Find the indicated term of the sequence.The eighteenth term of the arithmetic sequence 12, 17, 22, ...

A. -73
B. 97
C. 102
D. -78

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Write the complex number shown below in trigonometric form.

A.
B.
C.
D.
E.

Mathematics