Perform the indicated operations.( 9x4 + 7x2 - 7x ) - ( -8x3 + 5x2 - 7x - 4)

A. 9x4 - 8x3 + 12x2 - 4
B. 9x4 + 8x3 + 2x2 + 4
C. 10x4 + 9x3 + 12x2 + 4
D. 13x7 + 12x3 


Answer: B

Mathematics

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Translate the equation into a sentence by using the phrase "varies directly" or "varies inversely". x = 

A. x varies inversely as the square root of v.  B. k varies inversely as the square root of v. C. x varies directly as the square root of v.  D. x varies inversely as the square of v. 

Mathematics

Use translations of one of the basic functions defined by y = x2, y = x3, y = , or y =  to sketch a graph of y = f(x) by hand. Do not use a calculator.y = x2 - 3

A.

B.

C.

D.

Mathematics

Find the x- and y-intercepts. Then graph the equation. x = 4

A. (4, 0); none

B. None; (0, 4)

C. (4, 0); none

D. None; (0, 4)

Mathematics

Add.

A. 1652 B. 1527 C. 1628 D. 14,562

Mathematics