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nadezda [96]
3 years ago
15

A common size for floor tiles is 1 square foot in area. how many square inches (in2) are in a square foot (ft2)?

Mathematics
1 answer:
Komok [63]3 years ago
6 0

There are 144 square inches in a square foot.

<u><em>Explanation</em></u>

A common size for floor tiles is 1 square foot in area.

We know that, <u> 1 foot = 12 inches. </u>

So, 1 square foot = (1 foot × 1 foot)                                                                                 = (12 inches × 12 inches ) = 144 square inches.

So, there are 144 square inches in a square foot.

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3 years ago
The surface area of this regular pyramid is 1040 cm2. The base is a regular pentagon with side b = 16 cm and slant height l =15
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Answer:

(a) = 11 cm

Step-by-step explanation:

The formula for finding the surface area of a regular pyramid is B + (1/2*P*l), with B being the area of the base, p being the perimeter of the base, and l being the slant of the pyramid.

The area of a pentagon can be solved using the formula 1/2*a*p, with a being the apothem and p being the perimeter of the pentagon.

  1. B + (1/2*80*15) = 1040
  2. B + 600 = 1040
  3. 1040 - 600 = 440 (440 is the area of pentagon)
  4. 1/2*a*(16*5) = 440
  5. 40*a = 440
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3 years ago
One of the factors of 34 is chosen at random. What is the probability that the factor is itself a two digit number?
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A factor of 30 is chosen at random. What is the probability, as a decimal, that it is a 2-digit number?

The positive whole-number factors of 30 are:

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P(factor of 30 chosen is a 2-digit number) = number of two-digit factors ÷ number of factors

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Answer:

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On the other hand, we know that sin( ∅ ) = 1 / csc ( ∅ )

Another odd function, so the same as before applies.

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