Answer:
C would be equal to (f - 13)/(10 - d)
Step-by-step explanation:
In order to find this, you must manipulate the equation so that the left side has every term with a c in it. Then you can isolate it by dividing and find what it is equal to.
10c - f = -13 + cd -----> Add f to both sides
10c = f - 13 + cd -----> Subtract cd from both sides
10c - cd = f - 13 ------> Pull out c
c(10 - d) = f - 13 -----> Divide by (10 - d)
c = (f - 13)/(10 - d)
Answer:


Step-by-step explanation:
We can use the identity:
to simplify this into:
The identity sin(x) = sin(y) -->
, can be used to simplify this further:
(Add 20 to both sides)
(Add x to both sides)
(Divide both sides by 2)
(Simplify)
If required, we can convert this into radians:

Choices A, C, and D don't make sense since they are not three-dimensional. Surface area deals with 3D shapes, not 2D.
Answer:
10*10*10
Step-by-step explanation:
10^3 equals 10*10*10