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Digiron [165]
3 years ago
15

How do you write 1.21 as fraction, when .21 is continuing?

Mathematics
1 answer:
Shtirlitz [24]3 years ago
3 0
x=1.212121... \\
100x=121.2121... \\
100x-x=121.2121...-1.212121... \\
99x=120 \\
x=\frac{120}{99} \\ x=\frac{40 \times 3}{33 \times 3} \\ x=\frac{40}{33}

The fraction is 40/33.
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Three lines of crops in a garden form a triangular shape. Strawberries are planted in a 10 ft line and green beans are planted i
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Answer:

p = 19.18

Step-by-step explanation:

This question is illustrated using the attachment and will be solved using cosine formula

a^2 = b^2 + c^2 - 2bcCosA

<em>Let the strawberry side be s, the Green beans be b and the pumpkins be p.</em>

<em />

The cosine formula in this case is:

g^2 = s^2 + p^2 - 2spCosG

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The equation becomes

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324 = 100 + p^2 - 20 * p * 0.375

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Collect Like Terms

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Using quadratic formula:

p = \frac{-b\±\sqrt{b^2-4ac}}{2a}

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a = 1

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c = -224

p = \frac{-(-7.5)\±\sqrt{(-7.5)^2-4*1*-224}}{2*1}

p = \frac{7.5\±\sqrt{56.25+896}}{2}

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p = \frac{38.36}{2} or p = \frac{-23.36}{2}

p = 19.18 or p = -11.68

But length can not be negative.

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p = 19.18

6 0
2 years ago
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same problem asked and answered here:


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