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liubo4ka [24]
3 years ago
7

Math help? One question?

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
3 0
My triangle solver says EF ≈ 7.5 ft.

_____
The law of cosines is usually used for this.

EF^2 = DE^2 +DF^2 -2*DE*DF*cos(D)
.. = 6^2 +11^2 -2*6*11*cos(40°)
.. ≈ 55.88

EF ≈ √55.88 ≈ 7.5 . . . ft

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I will give brainliest answer
sineoko [7]

Answer:

≈ 93.06 cm²

Step-by-step explanation:

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area of circle = πr² = π × 8² = 64π cm²

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Thus

shaded area = 64π - 108 = 201.062 - 108 ≈ 93.05 cm² ( nearest hundredth )

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3 years ago
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Step-by-step explanation:

diameter=

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aniked [119]

The equation of line that passes through point (-3, 8) and has an undefined slope is x = -3

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Given that we have to find the equation of line that passes through point (-3, 8) and has an undefined slope

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For a vertical line, the value of  x  is the same for each and every value of  y

Given point is (x, y) = (-3 , 8)

Because the value of  x  in the point provided in the problem is -3, we get

Equation of line is : x = -3

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Step-by-step explanation:

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3 years ago
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