Answer:
54
Step-by-step explanation:
0.54 converts to 54/100 as a fraction
Answer:
x=-21
Step-by-step explanation:
1/3x + 9 = 2
subtract 9 on both sides
1/3x = -7
multiply 3 on both sides bc its the reciprocal of 1/3
and you get -21
Answer:
18π ft^2
Step-by-step explanation:
Area of Sector = 
Where
is the angle of the sector (in our case it is 45°), and
r is the radius (which is 12 ft)
So we plug these into the formula and get our answer to be:

This is our answer: 18π
Surface area of a sphere:

Volume of a sphere:

Differentiate both with respect to an arbitrary variable for time:


You're given that

when

, so you can use this in the first equation to solve for

.

Now use this to find

.
THE ANSWER IS D
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