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lubasha [3.4K]
3 years ago
8

How do you find the angles

Mathematics
1 answer:
Bas_tet [7]3 years ago
7 0

Answer:

i don't know. it doesn't depend my major. so hard for me

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I don't understand how it gets the result <img src="https://tex.z-dn.net/?f=28b_%7B2%7D" id="TexFormula1" title="28b_{2}" alt="2
Maksim231197 [3]

Answer + Step-by-step explanation:

<u><em>your question is about equation 4</em></u> :

b_{1}=14-b_{2}

Then

\left( b_{1}\right)^{2}  =\left( 14-b_{2}\right)^{2}   \  \text{(this is a special product )}

Then

\left( b_{1}\right)^{2}  =14^{2}-2\times 14 \times b_{2}+ (b_2)^2

Then

\left( b_{1}\right)^{2}  =196-28 b_{2}+ (b_2)^2

7 0
2 years ago
Please help me out :)
arlik [135]

Answer:

\frac{\sqrt{17} }{7}

Step-by-step explanation:

Using the Pythagorean identity

sin²x + cos²x = 1, then

sinx = \sqrt{1-cos^2x}

Note that (\frac{4\sqrt{2} }{7})² = \frac{32}{49}

sinΘ = \sqrt{1-(32/49)}

        = \sqrt{\frac{17}{49} } = \frac{\sqrt{17} }{7}

5 0
3 years ago
Use the graph of a quadratic to answer the questions below.
saveliy_v [14]

Answer:

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Step-by-step explanation:

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You use 100 to get 1.8
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3 years ago
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