Answer:
The answer is C because the two figures are not congruent.
The trick is to write appropriate equations and then solve the system of equations you've created.
"sum of two numbers is -5:" x + y = -5
"difference is -1:" x-y = -1
Add these two equations together. This will cause y to drop out, and you will be left with an equation in x alone:
2x = - 6, so x = -3. Subst. -3 for x in either equation, above, and find the corresponding y value.
Then write your solution as (-3, y ) (write in your value for y).
Sphere Surface Area = <span> 4 • <span>π <span>• r²
</span></span></span>
Sphere Surface Area =
<span>
<span>
<span>
1,809.5573684677
</span>
</span>
</span>
Answer:
The angle of elevation of the sun is 
.
Step-by-step explanation:
Let 
be the angle of elevation of the sun as shown in the diagram.
Then the side length which is 
feet is opposite to and the side length which is 
feet is adjacent to .
Therefore we use the trigonometric ratio that involves the opposite and adjacent sides, which is the tangent ratio.
We solve for to get,
To the nearest degree, the angle of elevation is
