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3 years ago

I am giving brainlist to quickest and the correct answer

Mathematics

2 answers:

Natalka [10]3 years ago

5 0

Answer:

Step-by-step explanation:

Sally drove 300 miles in 6 hours, so all you have to do is divide 300 by 6.

300/6=50

Sally drove 50 miles per hour.

Have an amazing day...I hope this helped!! c:

kirza4 [7]3 years ago

4 0

50 miles drive per hour

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Need help! Law of cosines...find b round to the nearest tenth please

dusya [7]

ANSWER

$B = 27.8 \degree$

EXPLANATION

The law of cosine is given by the formula:

${b}^{2} = {a}^{2} + {c}^{2} - 2bc \cos(B)$

From the diagram,

a=17, b=8, c=16

We substitute the given values into the formula to obtain:

${8}^{2} = {17}^{2} + {16}^{2} - 2(17)(16)\cos(B)$

$64 = 289+ 256- 544\cos(B)$

$64 = 545- 544\cos(B)$

$64 - 545 = - 544\cos(B)$

$- 481 = - 544\cos(B)$

$\frac{ - 481}{ - 544} = \cos(B)$

$cos(B) = 0.88419$

$B = \cos ^{ - 1} (0.88419)$

$B = 27.8 \degree$

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3 years ago

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kompoz [17]

This is equals 3 and 18/56 which reduces to 3 and 9/28 all you have to do is plug it the calculator like it is shown and then you will get this answer

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3 years ago

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yKpoI14uk [10]

Answer:

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Step-by-step explanation:

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notka56 [123]

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3 years ago

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Mademuasel [1]

Answer:

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Step-by-step explanation:

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