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xxTIMURxx [149]
3 years ago
11

Heelllpppp!!!!!!!!!!!!!!!!!!! Find the arc length of the partial circle.

Mathematics
2 answers:
mrs_skeptik [129]3 years ago
8 0

Answer:

23.55

Step-by-step explanation:

We know it's three quarters of a circle since the angle is 270°

Therefore we can calculate like a normal circle and multiply by \frac{3}{4}.

The formula for calculating the circumference is 2 times pi times the radius or 2\pi r .

\pi=3.14\\2\times\pi=6.28\\6.28\times5=31.4\\31.4\times\frac{3}{4}=23.55

finlep [7]3 years ago
7 0

Answer:

23.55

Step-by-step explanation:

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List the single-digit divisors of 2100.<br> I really need help
liberstina [14]

Answer:

  • 1, 2, 3, 4, 5, 6, 7

Step-by-step explanation:

<u>Prime factors of 2100 are:</u>

  • 2100 = 2*2*3*5*5*7

<u>The single-digit divisors are:</u>

  • 1, 2, 3, 2*2= 4, 5, 2*3= 6, 7

-----------------------------------------------------------------

<u>Another solution is you divide 2100 by all numbers 1 through 9 and list those divisible:</u>

  • 2100/1 = 2100, yes
  • 2100/2 = 1050, yes
  • 2100/3 = 700, yes
  • 2100/4 = 525, yes
  • 2100/5 = 420, yes
  • 2100/6 = 350, yes
  • 2100/7 = 300, yes
  • 2100/8 = 262.5, no
  • 2100/9 = 233.33, no

So all the numbers from 1 to 7

5 0
3 years ago
Given f(x) =3x+7 find f(5)
ra1l [238]

Answer:

22

Step-by-step explanation:

f (5)=3 (5)+7

f (5)=15+7

f (5)=22

8 0
3 years ago
Add. 6 1/3 + 4 ¾ + 3 7/12 =
vodka [1.7K]
14 2/3 This is the answer! I know you will get this right buddy!
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3 years ago
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What is 15% of 60?? Can someone plz tell me how to calculate this as well??? Thanks!!!
earnstyle [38]
To convert a percentage to a decimal you move the decimal two places to the left. Therefore:

15.% becomes .15

You then multiply this decimal to the number you are trying to find the percentage of.

.15 × 60 = 9.

9 is 15% of 60.
4 0
3 years ago
Alexis put $2000 in savings account. After 4 years, she had $2543 in the account. What rate of interest did she earn?
Marizza181 [45]

Answer:

A

Step-by-step explanation:

Hihi. So, this is a nice application of interest rates as well as properties of exponentials/logarithms. As you know, the basic equation for interest rates is A= Pe^(rt) where A is your final amount, P is your initial, r is your rate of interest, and t is the time the money was accumulating interest. After cleaning up, you get in a situation due to you having e still lying around. Luckily, if you take the natural log of e, all you have left behind is the previous exponent. Thus, you can take the natural log of both sides, divide by 4, and then simplify to see that your final interest rate is ~6%

5 0
3 years ago
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