Answer:
Step-by-step explanation:
The number inside the square root symbol is the number you have to get when you multiply a certain number twice.
So 
:
What multiplied by itself is 121?
Backwards equation:
Do not do the backwards method all the times, it does not work for all numbers.
Answer:
314 m²
Step-by-step explanation:
the surface area of a sphere (As) is
As = 4×pi×r²
our radius r (half of the diameter) here is 5m.
As = 4×3.14×5² = 4×3.14×25 = 100×3.14 = 314 m²
Answer:
because you have to work, and i'm doing edinuity
Step-by-step explanation:
To answer this question, you can use the values of the unit circle to figure out the angle measurement. Since the cosine is the x value of the circle, we can see that at 45°<span>, the x value is √2/2.
So the missing angle should be 45°</span>
Answer:
-10w -20
Step-by-step explanation:
5(-2w-4)
Distribute the 5
5*-2w -5*4
-10w -20
