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Brilliant_brown [7]
4 years ago
13

If 2a+ 2/a =4, what is the value of 2a^2+ 2/a^2 ?

Mathematics
1 answer:
LuckyWell [14K]4 years ago
7 0

Answer:

Step-by-step explanation:

2a + 2/a = 4

a + 1/a = 2

a^2 + 1 = 2a

a^2 - 2a +1 = 0

(a-1)^2 = 0

a = 1

2(1)^2 + (2/(1)^2) = 4

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The length of a rectangle with area 38 in2 depends on its width. Write the formula that describes the length of the rectangle as
Ostrovityanka [42]

Answer:

L = 38/W

Step-by-step explanation:

The area of a rectangle is computed by multiplying length by width. For length L and width W in inches, your rectangle has area ...

A = LW

38 = LW

Then the length can be found by dividing the equation by W:

L = 38/W

8 0
3 years ago
Matt had instructions to take a box of nails to a classroom that has a number equal to the remainder of the division 2960÷9. mat
mars1129 [50]
2960 mod 9 = 8. So the classrooms he can take it to are 8, 17, 26, ... 17 is among these so he is correct
5 0
4 years ago
I’ll give 10 points and brainliest
natka813 [3]

Answer:

=-38

Step-by-step explanation:

-2^{2} -(-16-6)+(-12)=

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-26+(-12)=

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Hope this helps and pls do mark me brainliest if you can:)

6 0
3 years ago
Read 2 more answers
At Bayside High School, 55% of the student body are boys. Thirty-five percent of the boys are on honor roll, and 40% of girls ar
BARSIC [14]
If 55% of the student body are boys, then 45% are girls.

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So now we need to find each of those numbers...

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40% of 45% =
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18% of girls (in the student body) are on honor roll

Add the two together to get the total percentage of student body that is on the honor roll...

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5 0
3 years ago
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Answer:

x = -6

Step-by-step explanation:

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5 0
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