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sattari [20]
3 years ago
6

Does Every positive real number have both a positive and negative cube root?

Mathematics
2 answers:
vovangra [49]3 years ago
7 0
Yes. For example, 25. The square root of 25 is 5 because 5*5=25. Multiplying two negatives always= a positive, so -5*-5=25.
pickupchik [31]3 years ago
3 0
Yes but it is really hard to explain

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The length of a 10-minute video is decreased by 45% when the video is edited. What is the length of the edited video?
olga_2 [115]

Answer:

The edited video would now be 5 Minutes 50 Seconds

Step-by-step explanation:

10-4.5=5.5

To subtract any percentage from a number, simply multiply that number by the percentage you want to remain. In other words, multiply by 100 percent minus the percentage you want to subtract, in decimal form. To subtract 20 percent, multiply by 80 percent (0.8).

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3 years ago
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Do the ratios 8/16 and 2/4 form a proportion
notsponge [240]

Answer:

Step-by-step explanation:

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3 years ago
Which statement is true about the equations –3x + 4y = 12 and 1/4x –1/3 y = 1?The system of the equations has exactly one soluti
iren [92.7K]

Answer:

The system of the equations has no solution; the two lines are parallel.

Step-by-step explanation:

The equations have the same slope. In standard form, this can be seen as the same coefficients for x and y. We will multiply the second equation by -12 to reveal this.

\frac{1}{4} x-\frac{1}{3}y=1 \\-12(\frac{1}{4} x-\frac{1}{3}y=1)\\\frac{-12}{4} x-\frac{-12}{3}y=-12\\-3x+4y=-12

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4 0
3 years ago
A solid silver spoon has a mass of 65.1g.
Keith_Richards [23]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Joe is finding the length of a rectangular prism. The volume of the prism is 204 ft3. The width is 3.5 ft, and the height is 5 f
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Answer:

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Step-by-step explanation:

Let's observe Joe's steps:

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That's how we know that Joe added instead of multiplied, as he should have done. Thus, the answer is B.

8 0
3 years ago
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