All categories

2 years ago

What is the approximate circumference of the circle that has a center (3, 1) and passes through the point (3, 4)?

Mathematics

1 answer:

mr_godi [17]2 years ago

3 0

Step-by-step explanation:

You use the Distance Formula

d= √( x2 - x1 )^2 + ( y2 - y1 )^2

substitute

r= √(3-3)^2 + (4-1)^2

√0^2 + 3^2

r = √9

r = 3

Now you can use the equation for finding the circumference

2πr

2π3

≈ 6π or 18.85

You might be interested in

Ac = 18 and CD = 5 AD ?

denis23 [38]

Answer:

½ x 18 x 5 =

Step-by-step explanation:

= ½ x 18 x 5

= 9 x 5

= 45

Follow me // i'm Followback you

4 0

4 years ago

Explain how you can find the sign of the product of two or more rational numbers.

makkiz [27]

Rational and product

6 0

3 years ago

PLS HELP! The number of tickets sold at the Amazing Art Museum on Saturday was 175% of the ticket sales on Friday. If 2,000 tick

kiruha [24]

Answer:

The answer is B

Step-by-step explanation:

Because 175% means its more than what it was before. Hope this helped!!

5 0

3 years ago

Read 2 more answers

Describe a scenario where you need to represent fractional percents greater than 100%

Andreas93 [3]

Answer:

Like on a test if you get extra credit.

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The caller times at a customer service center has an exponential distribution with an average of 22 seconds. Find the probabilit

jenyasd209 [6]

Answer:

The probability that a randomly selected call time will be less than 30 seconds is 0.7443.

Step-by-step explanation:

We are given that the caller times at a customer service center has an exponential distribution with an average of 22 seconds.

Let X = caller times at a customer service center

The probability distribution (pdf) of the exponential distribution is given by;

$f(x) = \lambda e^{-\lambda x} ; x > 0$

Here, $\lambda$ = exponential parameter

Now, the mean of the exponential distribution is given by;

Mean = $\frac{1}{\lambda}$

So, $22=\frac{1}{\lambda}$ ⇒ $\lambda=\frac{1}{22}$

SO, X ~ Exp( $\lambda=\frac{1}{22}$ )

To find the given probability we will use cumulative distribution function (cdf) of the exponential distribution, i.e;

$P(X\leq x) = 1 - e^{-\lambda x}$ ; x > 0

Now, the probability that a randomly selected call time will be less than 30 seconds is given by = P(X < 30 seconds)

P(X < 30) = $1 - e^{-\frac{1}{22} \times 30}$

= 1 - 0.2557

= 0.7443

7 0

4 years ago