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lorasvet [3.4K]
3 years ago
12

Please Explain to me the steps of how to get the answer to -30+14.7

Mathematics
2 answers:
kupik [55]3 years ago
8 0
^^^ answer is above

natta225 [31]3 years ago
6 0
Just subtract 14.7 from 30 to get 15.3 and make that negative so the answer is -15.3.
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What is the distance around a triangle that has sides measuring 21/8 feet, 31/2 feet and 21/2 feet?
sleet_krkn [62]
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ladessa [460]

Given:

AB=6\ BC=r,\ CD=r,\ AD=12.

To find:

The value of r.

Solution:

We have,

AB=6\ BC=r,\ CD=r,\ AD=12.

We know that the radius is perpendicular to the tangent at the point of tangency

AD is the tangent and CD is the radius. So, CD is perpendicular to AD at point D, i.e., m\angle D=90^\circ.

Using Pythagoras theorem, we get

AC^2=AD^2+CD^2

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36+12r+r^2=144+r^2

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12r=108

r=\dfrac{108}{12}

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Molodets [167]

Answer:

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Step-by-step explanation:

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C

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