3 years ago

Can anyone help me ASAP!

Mathematics

1 answer:

brilliants [131]3 years ago

5 0

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lana66690 [7]

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x=-3 I promise that this is the Answer

Step-by-step explanation:

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4 years ago

A boat traveled north for 28 miles, then turned x° southwest and traveled for 25 miles before stopping. When it stopped, the boa

nexus9112 [7]

Answer:

Option B :39 degrees is the correct.

The nearest degree is 39°

Step-by-step explanation:

Laws of cosines relates each side with its opposite angle.

Formula for this is :

$c^{2} =a^{2} +b^{2} - 2abcosC$

$a^{2} = b^{2}+c^{2} - 2bccosA$

$b^{2} =a^{2}+c^{2} -2accosB$

in figure a=28

b=18

c=25

Here we have to find angle between a and c that is B

So $18^{2} = 25^{2} +28^{2} -2*25*28cosB$

324 = 625 + 784 - 1400cosB

1400cosB = 625 + 784 - 324

1400cosB = 1085

cosB = 0.775

∠B = 39.195° ≈ 39°

The boat change 39° when it made its first turn.

Learn more about Laws of cosines here -https://brainly.ph/question/13424723

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2 years ago

Write the equation for a parabola with a focus at (7,-6) and a directrix at x = 5.

notka56 [123]

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3 years ago

FIND THE VOLUME OF THE PYRAMID!

Anton [14]

You would have to add 9+4+12 to get your answer

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4 years ago

Average of 45 and 38

stepan [7]

It's (45 + 38) : 2 = 41.5

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3 years ago