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nirvana33 [79]
3 years ago
8

Please help

Mathematics
2 answers:
Dominik [7]3 years ago
8 0

Answer:

13.3

Step-by-step explanation:

f² = e² + g² - 2(e)(g)cos(F)

f² = 9² + 18² - 2(9)(18)cos(45)

f² = 175.8974029

f = 13.262631982

Katarina [22]3 years ago
6 0

Answer:

Step-by-step explanation:

we would apply the law of Cosines which is expressed as

a² = b² + c² - 2abCosA

Where a,b and c are the length of each side of the triangle and A is the angle corresponding to a. Likening the expression to the given triangle, it becomes

f² = e² + g² - 2(e × g)CosF

f² = 9² + 18² - 2(9 × 18)Cos45

f² = 81 + 324 - 2(162)Cos45

f² = 405 - 324 × 0.707

f² = 405 - 229.068

f² = 175.932

f = √175.932

f = 13 to the nearest integer

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Answer:

The x-coordinates are translated 6 units to the left or right while the y-coordinates are not affected.

Step-by-step explanation:

The given triangle has vertices at A(-4,1), B(-2,1) and C(-2,4)

The transformation rule for a horizontal translation by k units is

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In this case we have k=6

A(-4,1)\to A'(-4\pm6,1)

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Therefore the x-coordinates are translated 6 units to the left or right while the y-coordinates are not affected.

See attachment

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3 years ago
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24:28

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In the figure below, C is between A and D, and B is the midpoint of AC. If BD=8 and BC=6, find AD.
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Answer:

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Step-by-step explanation:

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