A rectangle is 4 cm longer than it is wide, and its area is 117 cm2 . find its dimensions.
2 answers:
Answer:
Step-by-step explanation:
its 13 cm
The area of a rectangle is equal L x W
4 cm longer than it is wide L = 4 + <span>W
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L x W = 117 we replace L here
(4 + <span>W ) x W = 117
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4W + W ^2 = 117
<span>4W + W ^2 -117 = 0
</span>W ^2 +4 W -117 = 0
W² + 4W - 117 = 0
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THEN u want to use the </span>use the quadratic formula
OR Factoring gives us
(W + 13)(W - 9) = 0
W = -13 or 9
But it can't be negative, so
W = 9 and L= 9+4 = 13
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Step-by-step explanation:
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Answer:
x = 12
Step-by-step explanation:
set up a proportion:
<u> 24 </u> = <u> 32 </u>
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Answer:
The end equation you get is p = 6x - 8
Step-by-step explanation:
p = 2l + 2w
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<span>(-2,7)
(18,1)
Slope = difference in "y" / </span><span>difference in "x"
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<span>Slope = -6 / -20
Answer is 2) -3 / 10
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