destineedhuber8301
16.10.2020 •
Mathematics
John increased the amount of water he drinks every day from 20 fluid ounces to 48 fluid ounces. By what percentages did John increases the water he drinks?
A. 15%
B.28%
C.140%
D.12.5%
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Ответ:
314 units
Step-by-step explanation:
The surface area formula for a sphere is --->
-If the radius is 5 unites, then simply substitute 5 for r
or
In order to solve we need to use order of operations: PEMDAS
We start from right to left
P= Parenthesis ()
E= exponents x²
M= multiplication X
D=divison ÷
A= addition +
S= subtraction -
Now that we know this, we can solve:
Exponents are first - 5² or (5x5) = 25
4(3.14)(25)
Now multiply- 25 X 3.14 = 78.5
4 X 78.5 = 314
Therefore the surface area of the sphere is 314 units