Hello!
To find the surface area of a sphere you use the equation

A is surface area
r is radius which is half the diameter
Put in the values you know

Square the number

Multiply the 4 and the 39.0625

The answer is

Hope this helps!
Answer:
Reference angles are always acute.
We can find the reference angle with the "formula"
π
−
θ
, where
θ
is our given angle.
We can plug
5
π
6
into our expression to get
π
−
5
π
6
=
6
π
6
−
5
π
6
=
π
6
Thus, our reference angle is
π
6
X/3-10=12
x/3=-2
x=-6
p/5+10=14
p/5=4
p=20
9514 1404 393
Answer:
108 cm
Step-by-step explanation:
6 pencil-lengths will be ...
6 × 18 cm = 108 cm
The length of the table is 108 cm.
Answer:
5+x=y
Step-by-step explanation:
If she has already knit 5 cm you will always have to factor that in. If x is the number of nights adding the number of nights she does 1 cm of knitting will give you the length she has knit so far (y). I hope this helped! Good luck