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serg [7]
2 years ago
8

Find the value of X. Round to the nearest tenth HELP ASAP!!!!

Mathematics
1 answer:
ZanzabumX [31]2 years ago
7 0

Answer: 22.5

Step-by-step explanation:

\sin 64^{\circ}=\frac{x}{25}\\\\x=25 \sin 64^{\circ}\\\\x \approx 22.5

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Pens cost $p exercise books cost $b. Write an algebraic expression that represent the cost of purchasing 20 pens and 8 exercise
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PLZ HELP!! NEED QUICKLY!!<br> Fill In The Blanks!!
Ket [755]

Answer:

Step-by-step explanation:

Statement                                   Solution

1. AB = CB                                  Definition of isosceles triangle

2: AD = DC                                  BD is the median to base AC

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6 0
3 years ago
The measures of 13 of the 14 angles of a 14−gon add up to 2,016°. What must the fourteenth angle measure be?
Ainat [17]

Answer:

x = 155 \frac{1}{13} or 155 1/3 degrees. If you want a decimal, 155.076923 degrees.

Step-by-step explanation:

2,016 is the sum of 13 identical numbers. Let's say the unknown number is x. We'll now write an equation to solve it.

13x = 2016

Divide both sides by 13.

x = \frac{2016}{13}

Now, I went ahead and solved this and ended up with a repeating decimal. But for your sake we'll just make it a nice mixed number.

13 goes into 2016 155 times.

Here, I'll check for you.

13 * 155 = 2015

So, if we were to turn this into a mixed number, we'd get something like this.

x = 155 \frac{1}{13}

That should be your fourteenth angle measure.

7 0
3 years ago
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