Which expression gives the surface area of a sphere with radius r?

a. r2
b. 4r3
c. 4r2
d. 4r2

Area of sphere is given by

Step-by-step explanation:

The surface area of sphere is given by:

Option C and D are correct but is missing in the options

Option A and B are incorrect.

to solve the area of sphere when radius is given a constant value.

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.