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KengaRu [80]
3 years ago
11

Find the circumference and area of a circle with diameter of 18 inches. Use 3.14 for pi. Write your answer as decimals rounded t

o the nearest hundredth.
a. C = 56.52 in, A = 1017.36 in2
b. C = 56.52 in, A = 254.34 in2
c. C = 113.04 in, A = 254.34 in2
d. C = 113.04 in, A = 1017.36 in2
e. None of the above are correct.
Mathematics
2 answers:
IceJOKER [234]3 years ago
8 0

Answer: b

Step-by-step explanation:

Radius = 9 inches, Pi= 3.14

Circumference = 2 x pi x radius = 2 x (3.14) x 9 = 56.52

Area = pi x radius x radius = (3.14) x 9 x 9 = 254.34

Bad White [126]3 years ago
5 0

Answer:

Answer attached

Step-by-step explanation:

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Is this irrational or rational?
Helga [31]

Answer:

irrational

Step-by-step explanation:

because √3 is irrational

6 0
3 years ago
Read 2 more answers
Please help!
Levart [38]

Using it's concept, it is found that his net worth is given by:

C) $1,052,662

<h3>What is the net worth of an individual?</h3>

It is given by the <u>sum of the individual assets subtracted by the sum of it's liabilities</u>.

In this problem:

  • The sum of his assets is of $178,000 + $1,055,000 = $1,233,000.
  • The sum of his liabilities is of $145,908 + $34,430 = $180,338.

Hence, his net worth is given by:

Net worth = $1,233,000 - $180,338 = $1,052,662.

Which means that option C is correct.

More can be learned about net worth at brainly.com/question/27218751

7 0
2 years ago
A study reports that college students work, on average, between 4.63 and 12.63 hours a week, with confidence coefficient .95. Wh
leonid [27]

Answer:

Step-by-step explanation:

Confidence coefficient is also the confidence level. A confidence coefficient of 0.95 is the same as a confidence level of 95%.

Confidence level is used to express how confident we are that the population mean lies within the calculated confidence interval. It expresses the possibility of getting the same result if tests are repeated. Since the study reports that college students work, on average, between 4.63 and 12.63 hours a week, with confidence coefficient .95, then the true statement is

G. We are 95% confident that the population mean time that college students work is between 4.63 and 12.63 hours a week.

8 0
3 years ago
I need help plzz ;)​
kaheart [24]

Answer:

If i am correct,

f(4) = -8

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Step-by-step explanation:

5 0
3 years ago
How many solutions does this system have? y=5x-1 y=-3+7
Ksenya-84 [330]
I'll assume that's

y=5x-1

y=-3x + 7

Please let me know if that's wrong.

These are two lines in point slope form.   They'll meet at some x that makes the ys equal.


5x-1 = -3x + 7

5x + 3x =1+ 7

8x= 8

x= 1
 
y=5x-1 = 5(1)-1 = 4

(x,y)=(1,4) is the only solution.

Exactly one solution.

We really only had to ensure the lines had two different slopes.  Then there's always exactly one solution.

If the lines had the same slope, they're either the same line (coincident) so an infinite number of solutions, all the points on that line, or they're parallel, no solutions.


8 0
3 years ago
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