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3 years ago

Use a whole number, a fraction, one plus sign, and four 2's to make 23.

Mathematics

1 answer:

alexira [117]3 years ago

6 0

22+2/2=23

22 is whole number
one plus sign
and 2/2 is the fraction
4 digits are 2

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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:

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

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

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

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

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

$B = 27.8 \degree$

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3 years ago

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Whitepunk [10]

2x^3

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alina1380 [7]

Answer:

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Step-by-step explanation:

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lora16 [44]

Answer:

3/16

Step-by-step explanation:

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