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Andre45 [30]
3 years ago
6

Find the circumference of a circle with an area of 530.93

Mathematics
1 answer:
HACTEHA [7]3 years ago
7 0
A = <span>π r^2
r^2 = A/</span><span>π
r^2 = 530.93 / 3.14
r^2 = 169.08
    r = 13

C = 2 </span><span>π r
C = 2 (3.14)(13)
C = 81.64

answer
81.64 m</span>
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I need help finding a solution to this equation: 5 (n-1/10)=1/2
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Answer:

n = 1/5

Step-by-step explanation:

Let's solve your equation step-by-step.

5(n− 1 /10 )= 1/ 2

Step 1: Simplify both sides of the equation.

5(n− 1 /10 )= 1 /2

(5)(n)+(5)( −1 /10 )= 1/2

(Distribute)

5n +  −1 /2 = 1 /2

Step 2: Add 1/2 to both sides.

5n +  −1 /2  +  1 /2  =  1 /2  +  1 /2

5n=1  

Step 3: Divide both sides by 5.

5n /5  =  1 /5

n=  1 /5

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3 years ago
PLEASE HELP ME
iogann1982 [59]

Since both are on the line y=10, the distance between the points is their difference in x-coordinates: 15 - (-30) = 45 units.

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3 years ago
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What is 34,235,345 in word form
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Thirty-four million, two hundred thirty-five thousand, three hundred forty-five
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3 years ago
You draw samples of size n from the population of all pennies in circulation. The random variable of interest is the mean age of
inn [45]

Answer:

Answers explained below

Step-by-step explanation:

Let X be the random variable that ages of pennies.

Also given that distribution of X is skewed to the right.

Given that,

mean = 7.4 years

standard deviation, sd = 3.3 years

Discuss the mean, standard deviation, and shape of the sampling distribution of sample means of the ages of pennies for each of the given sample sizes.

<u>For n = 5, </u>

the mean of the sampling distribution of mean = 7.4

sd of the samplong distribution of mean = 3.3 / sqrt(5) = 1.48

Shape of the distribution is positively skewed.

<u>For n= 15 </u>

the mean of the sampling distribution of mean = 7.4

sd of the samplong distribution of mean = 3.3 / sqrt(15) = 0.85

Shape of the distribution is positively skewed.

<u>For n = 40 </u>

the mean of the sampling distribution of mean = 7.4

sd of the samplong distribution of mean = 3.3 / sqrt(40) = 0.52

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4 0
3 years ago
Anumeha is mowing lawns for a summer job. For every mowing job, she charges an initial fee of $ 10 $10dollar sign, 10 plus a con
slavikrds [6]

Answer:

F(t) = 10 + 5(t)

Step-by-step explanation:

The complete question is as follows;

Anumeha is mowing lawns for a summer job. for every mowing job, she charges an initial fee of \$10$10dollar sign, 10 plus a constant fee for each hour of work. her fee for a 555-hour job, for instance, is \$35$35dollar sign, 35. let f(t)f(t)f, left parenthesis, t, right parenthesis denote anumeha's fee for a single job fff (measured in dollars) as a function of the number of hours ttt it took her to complete it. write the function's formula.

Solution

We are interested in writing the function F(t) formula for the fee charged by Anumeha per job.

Now, the key to writing this function is knowing exactly the constant fee she charges on the job.

We were told that she got $35 for a 5 hour job.

Thus, the constant amount charged is as follows;

Since it’s $10 as initial fee and the constant fee is per hour;

35 = 10 + 5(x)

where x is the constant fee per hour

35 = 10 + 5x

5x = 35-10

5x = 25

x = 25/5

x = $5

This mess that she charges a constant fee of $5 per hour

So we can write the equation now.

F(t) = 10 + 5(t)

where t represents the number of hours she spent on the job

6 0
3 years ago
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