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fgiga [73]
3 years ago
14

The area of a circle is 28.26 square yards. what is the circle's circumference? a=28.26 yd2

Mathematics
2 answers:
Sonbull [250]3 years ago
8 0

Answer:


Step-by-step explanation:

its 18.84


Levart [38]3 years ago
5 0

area \:  = \pi {r}^{2} \\  circumference  = 2\pi \: r
where r = radius
\pi {r}^{2}  = 28.26 \:  {yd}^{2}  \\  {r}^{2}  = 28.26 \div \pi \\  {r}^{2}  = 8.99 = 9 \\  \sqrt{ {r}^{2} }  = r  =  \sqrt{9}  = 3
circumference = C
c = 2\pi \: r = 2(3) \times \pi \\  = 18.85 \: yd = 18.9 \: yd


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All of them plz I need help if ur older Shouldnt be hard
vfiekz [6]

Answer:

The answer for number 1 would be 57 dollars and 80 cents

Number two would be little ceasars

Number 3 would be 75 dollars and 60 cent

Number 4 would be 40 dollars and 80 cent

Number 5 would be 110 dollars and 98 cents

Step-by-step explanation:

Because of you take 68 and times it by 15% which would be .15 you would get 10.2 you would then take 68 and subtract 10.2 from it and get 57.8

Number 2: take 7.50 times it by .3 and you get 2.25 then subtract 2.25 from 7.50 and you get 5.25 so even with the coupon little ceasars pizza is still 25cent cheaper

Number 3: add 42 to 28 and you get 70. 8% of 70 is 5.6 so add 5.6 to 70 and you have your answer of 75.60

Number 4: 35.48 is the price alone. Times that number by .15 and you get 5.322. Add 35.48 and 5.322 to get 40.802 but for money wise you just need the 40.80

Number 5: 118 one again is the price standing alone but 118 multiplied by .10 is 11.8 so subtract 11.8 from 118 and you get 106.2 but there is still a sales tax. So 106.2 times .045 or 4.5% would be 4.779, add that number to 106.2 and you get 110.979. Now the problem did not say anything about rounding but the 9 would make the 7 an 8 so of you do that you get 110.98.

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3 years ago
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8 0
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A second important result is that electrons will fill the lowest energy states available. This would seem to indicate that every
Assoli18 [71]

Answer:

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Explanation:

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<u>2) Second quantum number, ℓ</u>

  • The second quantum number, ℓ,  is named, Azimuthal quantum number.

The possible values of ℓ are from 0 to n - 1.

Hence, since n = 2, there are two possible values for ℓ: 0, and 1.

This gives you two shapes for the orbitals: 0 corresponds to "s" orbitals, and 1 corresponds to "p" orbitals.

<u>3) Third quantum number, mℓ</u>

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The possible values for mℓ are from - ℓ to + ℓ.

Hence, the poosible values for mℓ when n = 2 are:

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<u>4) Fourth quantum number, ms.</u>

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Therfore the full set of possible states (different quantum number for a given atom) for n = 2 is:

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  • (2, 1, 1, +1/2)
  • (2, 1, 1, -1/2)

That is a total of <u>8 different possible states</u>, which is the answer for the question.

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