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2 years ago

15

Plss help me with my questions plsss plss help me plsss

2 answers:

yarga [219]2 years ago

6 0

Answer:

11. 3.8 12. .009 13. 5.1 14. .678 15. 37.0800

Kamila [148]2 years ago

3 0

Step-by-step explanation:

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you're from which country

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Oh gosh I dunno any of this-<br><br> Trigonometry

egoroff_w [7]

Answer:

Step-by-step explanation:

<u>Triangle 1</u>:

Problem:

Find leg $a$ of a right triangle if hypotenuse $c=10$ and angle $\alpha =25^o$ .

Solution:

$a$ ≈ $4.2262$

Explanation:

To find leg $a$ use formula:

$\text{sin}(\alpha )=\frac{a}{c}$

After substituting $\alpha =25^o$ and $c=10$ we have:

$sin(25^o)=\frac{a}{10}\\0.4226=\frac{a}{10}\\a=0.4226\times10\\$

$a=4.2262$

<u>Triangle 2</u>:

Problem:

Find leg $b$ of a right triangle if leg $a=4$ and angle $\alpha =20^o$ .

Solution:

$b$ ≈ $10.9899$

Explanation:

To find leg $b$ use formula:

$\text{tan}(\alpha)=\frac{a}{b}$

After substituting $\alpha =20^o$ and $a=4$ we have:

$tan(20^o)=\frac{4}{b}\\0.364=\frac{4}{b}\\b=\frac{4}{0.364}\\b =10.9899$

8 0

1 year ago

Read 2 more answers

Please help i will give brainliest

Ket [755]

Answer:

13

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Order from least to greatest 2.34,2 3/4,9/4.

Paladinen [302]

Its not in order its 2.34,9/4,2 3/4

4 0

2 years ago

I need help quick please

fredd [130]

Orange is the answer

8 0

2 years ago

Does anyone know the answer to this question

lys-0071 [83]

ANSWER

$\cos B = \frac{ \sqrt{3} }{3}$

EXPLANATION

The given triangle is a right triangle.

It was given that,

$a = 1$

and

$b = \sqrt{2}$

Using the Pythagoras Theorem, we can determine the value of c.

${c}^{2} = {( \sqrt{2} )}^{2} + {1}^{2}$

${c}^{2} = 2 + 1$

${c}^{2} = 3$

$c = \sqrt{3}$

The ratio is the adjacent over the hypotenuse.

$\cos B = \frac{1 }{ \sqrt{3} }$

We rationalize to get:

$\cos B = \frac{ \sqrt{3} }{ \sqrt{3} \times \sqrt{3} } = \frac{ \sqrt{3} }{3}$

3 0

2 years ago