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Kitty [74]
3 years ago
11

A sphere has the volume given. Find its surface area to the nearest whole number.

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0
Volume of the sphere = 900 cubic inch
Then
4/3 pi (r)^3 = 900
pi (r)^3  = (900 * 3)/4
             = 675
r^3 = 675/pi
      = 675/3.14
r^3 = 214.97
r = 6
Then
Surface area of the sphere = 4 pi (r)^2
                                            = 4 * 3.14 * (6)^2
                                            = 4 * 3.14 * 36
                                            = 452.16
                                            = 452
The surface area of the sphere given in the question is 452 square inches.
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Answer:

  (b)  1.95

Step-by-step explanation:

One of the easiest ways to evaluate an arithmetic expression of almost any kind is to type it into an on-line calculator. Many times, typing it into a search box is equivalent.

<h3>Application</h3>

See the attachment for the search box input (at top) and the result. This calculator has the benefit that it <em>always follows the Order of Operations</em> when evaluating an expression. (Not all calculators do.)

  ln(7) ≈ 1.95

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<em>Additional comment</em>

If your math course is asking you to evaluate such expressions, you have probably been provided a calculator to use, or given the requirements for a calculator suitable for use in the course.

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<u>Rewriting the data set in the same denominator to compare:</u>

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<u>As we see the smallest value is 5/8 and the highest value is 10/8, so the difference:</u>

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