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Likurg_2 [28]
2 years ago
12

Solve the following quadratic equation ​

Mathematics
1 answer:
liraira [26]2 years ago
7 0

27x^2 = 3

27x^2 - 3 = 0

3(9x^2 - 1 ) = 0

9x^2 - 1 = 0

( I think this is it- )

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Solve the equation. 24 = 2x – 9
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Length of a rectangle is 4 inches less than twice it’s width of the perimeter is 70 inches what’s the dimensions?
Vedmedyk [2.9K]
W= width
L= length= 2W-4
Perimeter= 70

FIND WIDTH:
P= 2(L + W)
P= 2L + 2W
substitute 2W-4 for L
70= 2(2W-4) + 2W
multiply 2 by all in parentheses
70= (2*2W) + (2*-4) + 2W
70= 4W - 8 + 2W
combine like terms
70= 6W - 8
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FIND LENGTH:
substitute w=13 to find width
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CHECK:
P= 2(L + W)
70= 2(22 + 13)
70= (2*22) + 2(13)
70= 44 + 26
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ANSWER:
length= 22 inches
width= 13 inches

Hope this helps! :)
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