Answer:
-19/5
Step-by-step explanation:
3-7+2/5-1/5
⇒-4+1/5
⇒-20+1/5
answer⇒-19/5
<u>hope it helps</u>
The answer is B. If you want work, please say so.
ANSWER
![x = 50.5 \degree](https://tex.z-dn.net/?f=x%20%3D%2050.5%20%5Cdegree)
EXPLANATION
We use the sine rule for solving triangles.
This is given by the formula,
![\frac{ \sin(A) }{a} = \frac{ \sin(B) }{b} = \frac{ \sin(C) }{c}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csin%28A%29%20%7D%7Ba%7D%20%20%3D%20%20%5Cfrac%7B%20%5Csin%28B%29%20%7D%7Bb%7D%20%20%3D%20%5Cfrac%7B%20%5Csin%28C%29%20%7D%7Bc%7D%20)
From the triangle,
![\frac{ \sin(x) }{60} = \frac{ \sin(40) }{50}](https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%5Csin%28x%29%20%7D%7B60%7D%20%20%3D%20%20%5Cfrac%7B%20%5Csin%2840%29%20%7D%7B50%7D%20)
We multiply both sides of the equation by 60 to get,
![sin(x) = \frac{ 60\sin(40 \degree) }{50}](https://tex.z-dn.net/?f=%20sin%28x%29%20%20%3D%20%20%5Cfrac%7B%2060%5Csin%2840%20%5Cdegree%29%20%7D%7B50%7D%20)
![sin(x) = 0.7713](https://tex.z-dn.net/?f=%20sin%28x%29%20%20%3D%200.7713)
We solve for x to obtain,
![x = arcsin(0.7713)](https://tex.z-dn.net/?f=%20x%20%3D%20arcsin%280.7713%29)
![x = 50.475](https://tex.z-dn.net/?f=%20x%20%3D%2050.475)
To the nearest tenth, we round to one decimal place to get,
Find the percent of the circle
r=radius of circle
then r=1/2 of the diagonal of the square
use some pythagoran theorme
45,45,90 triangle
(r√2)/2=1/2 of a side
r√2 is one side
square it
2r²=square
area of circle is pir²
percent it is is
square/circle=
(2r²)/(pir²)=
2/pi= about
0.636
about 64% that it is in the square
Answer:
Step-by-step explanation:
6A) Death Valley is located below sea level. It says it is -282 feet. This means that it is below 0 and sea level is marked at 0.
6B) 5280 + 282 = 5562 ft higher
6C) The closer you get to the ocean the closer you are to 0. If you were in the water floating on top you would be at 0.
13) all 3 are 28
The parenthesis have to stay. This is how we know to distrubute the 2 across the problem.