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pychu [463]
3 years ago
15

Simplify V80 A. 16V5 B. 5V4 C. 4V5 D. 20V4

Mathematics
1 answer:
borishaifa [10]3 years ago
8 0

Answer:

4\sqrt{5}

Step-by-step explanation:

\sqrt{80} = \sqrt{2^{2}*2^{2}*5}= 4\sqrt{5}

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Please help asap 30 pts
Dmitry [639]
C: 12/35a^3

2 multiplied by 6 is 12.
5 multiplied by 7 is 35.
a^1+a^2=a^3.
7 0
3 years ago
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X² - y² = z²<br>Express y in terms of x and z.<br>​
lord [1]

Answer:

y² = x² - z²

Step-by-step explanation:

x² - y² = z²

Transpose y the other side

x² - z² = y²

or

y² = x² - z²

8 0
3 years ago
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(10+-7 - -2) / (-2 - -1)
Scrat [10]

Nice use of brackets. We know exactly what you mean.

(10 - 7 + 2) / (-2 + 1) Notice that with an even number of - signs, you get a plus and with and odd number you get a minus.

(5) / (-1) = - 5 answer

Edit

Numerator

10 does not change.

+ - 7 Here a plus and a minus are put together. There is 1 minus sign which is an odd number of minus signs so the 7 is minus

- - 2 Here there are 2 minus signs. They become plus because 2 is even, and an even number of minuses become a plus so you have +2

10 - 7 + 2 = 5

Denominator

-2 does not change. It remains minus 2.

- - 1 There are 2 minus signs so this becomes plus 1.

- 2 + 1 = - 1

Numerator over denominator = 5/-1 = - 5. I'll probably run out of editing time. If you still don't understand, try and pinpoint the problem and we'll keep trying until you do see it. This question is worth it.

4 0
3 years ago
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, what does it mean to "substitute" a value into an equation<br> or expression
Strike441 [17]

Answer: You plug in a value for one of the variables

Step-by-step explanation: For example f(x)=2x+2

x=6 2(6) +2=14

4 0
3 years ago
If your car travels 270 miles and uses 9.2 gallons, how many miles per gallon did you get? (Round your answer to three decimal p
leva [86]
270 miles divide by 9.2
29.348 miles per gallon
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3 years ago
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