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Kazeer [188]
3 years ago
6

WILL GIVE BRAINLIEST

Mathematics
2 answers:
andreev551 [17]3 years ago
7 0

Answer:

B. 12

Step-by-step explanation:

First, we need the degrees for <em>A</em>. So, cos<em>x </em>= 5/13    =    67.4

Now it will be easy to solve a. tan67.4° = a/5    =   12.011728511....

we round it to the nearest tenth and we get 12.

Phoenix [80]3 years ago
5 0

Step-by-step explanation:

<em><u>By</u></em><em><u> </u></em><em><u>pythagoras</u></em><em><u> </u></em><em><u>theoram</u></em><em><u> </u></em>

<em><u>c =  \sqrt{a2  + b2}</u></em>

<h2><em><u>1</u></em><em><u>3</u></em><em><u>=</u></em><em><u>a</u></em><em><u>²</u></em><em><u>+</u></em><em><u>5</u></em><em><u>²</u></em></h2><h2><em><u>a</u></em><em><u>²</u></em><em><u>=</u></em><em><u>1</u></em><em><u>3</u></em><em><u>²</u></em><em><u>--5</u></em><em><u>²</u></em></h2><h3><em><u>a</u></em><em><u>²</u></em><em><u>=</u></em><em><u>1</u></em><em><u>6</u></em><em><u>9</u></em><em><u>--25</u></em></h3><h3><em><u>a</u></em><em><u>²</u></em><em><u>=</u></em><em><u>1</u></em><em><u>4</u></em><em><u>4</u></em></h3>

<h2 />

<h2><em><u>I</u></em><em><u> </u></em><em><u>think</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>a</u></em><em><u> </u></em><em><u>helpful</u></em><em><u> </u></em><em><u>for</u></em><em><u> </u></em><em><u>you</u></em><em><u> </u></em></h2>
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