Answer:
cos theta=4/5
b/h=4/5
b=4 and h=5
p=?
H^2=P^2+B^2
5^2=P^2+4^2
25-16=P^2
9=P^2
=P
3=P
Now,
sin2theta
=p/h2
=3/5*2
=9/5
Step-by-step explanation:
![There!](https://tex.z-dn.net/?f=There%21)
![2x^4+16x=0](https://tex.z-dn.net/?f=2x%5E4%2B16x%3D0)
![2x^4+16: 2x(x+2)(x^2-2x+4)](https://tex.z-dn.net/?f=2x%5E4%2B16%3A%202x%28x%2B2%29%28x%5E2-2x%2B4%29)
![2x(x+2)(x^2-2x+4)=0](https://tex.z-dn.net/?f=2x%28x%2B2%29%28x%5E2-2x%2B4%29%3D0)
You got to used the <u>Zero Factor Principle:</u>
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![x^2-2x+4=0](https://tex.z-dn.net/?f=x%5E2-2x%2B4%3D0)
![Solve: x+2=0:x=-2](https://tex.z-dn.net/?f=Solve%3A%20x%2B2%3D0%3Ax%3D-2)
![Solve: x^2-2x+4=0: x=1+\sqrt{3}i,x=1-\sqrt{3} i](https://tex.z-dn.net/?f=Solve%3A%20x%5E2-2x%2B4%3D0%3A%20x%3D1%2B%5Csqrt%7B3%7Di%2Cx%3D1-%5Csqrt%7B3%7D%20i)
<u>ANSWER:</u>
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Hopefully, this helps you!!
![AnimeVines](https://tex.z-dn.net/?f=AnimeVines)
Answer:
$25.30
Step-by-step explanation:
100% --- $22
100% + 15% --- ?
115% ---
× $22 = $25.30
Well it will be 6/4 but since you want with a whole number and fraction the answer will be 1 1/2.
The surface area would be 142 cm squared. Hope this helps