Combine like terms whenever possible. Write the result with descending powers.-6y5 - 9y4

A. -15y5
B. -15y9
C. -15y4
D. Cannot be simplified


Answer: D

Mathematics

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Evaluate the expression.P(8, 3)

A. 336 B. 168 C. 6720 D. 240

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Provide an appropriate response.For the hyperbola x2 - 12y2 = 48, if x = 9.2, what are the two values of y?

A. No y values. B. ±1.7981 C. ±1.7474 D. ±31.1076

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Simplify.(-i)35

A. i B. -1 C. -i D. 1

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Add and simplify. Write the answer as a mixed number as needed.  - 

A. 2
B.
C.
D. 1

Mathematics