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dangina [55]
3 years ago
13

Find the surface area of a hemisphere with a diameter of 26 cm. Round your answer to the nearest tenth.

Mathematics
1 answer:
Katarina [22]3 years ago
4 0
The surface area of a sphere is 4 \pi  r^{2}.

Hence, the surface area of a hemisphere is half that, 2 \pi  r^{2}.

If the base is also included then the surface area will be 3 \pi  r^{2}.

Given,

Diameter = 26 cm

Therefore, Radius = \frac{26}{2} = 13 cm

Thus, 

Area = 3 *  \pi *  13^{2} = 3 * \pi * 169 = 507 \pi = = 1592.8 cm^{2} [approx.]
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A license plate consists of 2 letters followed by 3 digits. How many license plates are possible if the 1st digit cannot be 0, a
zloy xaker [14]

There are 608400 plates are possible.

If the first is A, we have 26 possibilities:

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There are 26 choices for the first letter and 26 choices for the second letter. The number of different combinations of 2 letters is:

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The same applies for the three digits.

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10 for the second,

10 for the third

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brainly.com/question/4658834

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8 0
2 years ago
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Marta_Voda [28]
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Final answer: x=10/17
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