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3 years ago

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Are all perfect cubes also multiples of three? Are all multiples of three also perfect cubes?

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Phoenix [80]3 years ago

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Answer:

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DanielleElmas [232]3 years ago

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45 is 90% of what number

choli [55]

45 = 90% * x
45 = .90x
45/.90 = x

x = 50

45 is 90% of 50

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3 years ago

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Paul's family drove 377 mi to the beach averaging 58 mi/h on the way there. On the return trip home, they averaged 65 mi/h

sashaice [31]

The answer is 12.3 hours

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3 years ago

What is the equation for a line parallel to y=-4x-9 that passes through the point 0,8

Afina-wow [57]

Parallel = same slope
Y = -4x + b
(0,8) y intercept; plug in
Solution: y = -4x + 8

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2 years ago

Which is the simplified rational expression for r2-4r+5/r-4

Sliva [168]

Step-by-step explanation:

$\frac{ {r}^{2} - 4r + 5}{r - 4} - \frac{ {r}^{2} + 2r - 8}{r - 4} \\ = \frac{ ({r}^{2} - 4r + 5) - ( {r}^{2} + 2r - 8) }{r + 4} \\ = \frac{ {r}^{2} - {r}^{2} - 4r - 2r + 5 - 8 }{r - 4} \\ = \frac{ - 6r - 3}{r - 4}$

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3 years ago

Rewrite Y=4-3x+x squared<br><br> in standard form and correctly

Whitepunk [10]

Answer:

Step-by-step explanation:

y = 4 - 3x + x^2 is to be rewritten in standard form. To do this, rearrange the terms in order of powers of x, from highest to lowest.

y = 4 - 3x + x^2 becomes y = x^2 - 3x + 4

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3 years ago