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Contact [7]
3 years ago
13

A coil spring 7.5 is strecthed to a length 9.75 cm. What is the percentage of this original length

Mathematics
1 answer:
kicyunya [14]3 years ago
7 0
77%
(9.75/7.5)100=76.9
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What numbers multiply to 6 and add up to 9
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Xy = 6
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x - x + y = -x + 9
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                                        2
                             x = 4.5 ± 0.5√(57)

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- (4.5 ± 0.5√(57))    - (4.5 ± 0.5√(57))
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                       (x, y) = (4.5 ± 0.5√(57), 4.5 ± 0.5√(57))

The two numbers that multiply to 6 and add up to 9 are 4.5 ± 0.5√(57).
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