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storchak [24]
3 years ago
15

What should the diameter of a circle whose circumference is measured to be 20 cm be?

Mathematics
1 answer:
horsena [70]3 years ago
5 0
C = πd      [C=circumference, d=<span>diameter, </span> π≈3.14]

20 = 3.14 · d
d = 20 / 3.14 ≈ 6.37 cm  
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Which products result in a difference of square or perfect square trinomial? Plzzz help quick!!
vagabundo [1.1K]

Answer:

  • perfect square: 2, 5
  • difference of squares: 1, 6

Step-by-step explanation:

If the two factors are identical, their product will be a perfect square.

If one of the factors is the difference of terms that are summed in the other factor, the product will be the difference of squares.

  (a +b)(a -b) = a² -b² . . . . . matches the 1st and 6th choices

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3 0
3 years ago
(a) It takes the Earth 365 days to complete a full orbit around the sun. It takes Jupiter approximately 4,332 days, 14 h, and 9
kogti [31]

1 year = 365 days.

1 day = 24 hours.

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First convert the hours and minutes in Jupiter orbit to days:

14*60 = 840 +9 = 849 minutes.

849 / 60 = 14.15 hours.

14.15 / 24 = 0.59 days.

Jupiter's orbit is 4332.59 days.

Now divide that by 365 for the number of years:

4332.59 / 365 = 11.87 years.

5 0
3 years ago
It costs $2.80 to make a sandwich at the local deli shop. To make a profit, the deli sells it at a price that is 170% of the cos
Svetlanka [38]

Answer:

Sandwich sells for  $4.76  .

Step-by-step explanation:

As given

It costs $2.80 to make a sandwich at the local deli shop.

To make a profit, the deli sells it at a price that is 170% of the cost.

170% is written in the decimal form

= \frac{170}{100}

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Thus

Sandwich selling cost = 1.7 × Cost of making

Put all the values in the above

Sandwich selling cost = 1.7 × $ 2.80

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Therefore the Sandwich sells for  $4.76  .

7 0
3 years ago
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Hoochie [10]
The answer is letter B
6 0
3 years ago
Help picture attached!!
tigry1 [53]
I think it would be D, because you would divide the 1/8 be 5, giving you 1/40
6 0
3 years ago
Read 2 more answers
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