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solong [7]
3 years ago
10

Will make brainiest if answer correctly with explanation

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

It would be 490  or 108

Step-by-step explanation:

multiply the perimeter thats all

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What's the equation for circumference
OleMash [197]

If youknow the diameter of the circle, then
                                                                     Circumference = (π) x (Diameter).

If youknow the radius of the circle, then
                                                                     Circumference = (π/2) x(radius).

If you know the area of the circle, then
                                                                     Circumference= 2 √ (π A) .


8 0
3 years ago
Read 2 more answers
Suppose that the mean time that visitors stay at a museum is 94.2 minutes with a standard deviation of 15.5 minutes. The standar
Maurinko [17]

Answer:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

Step-by-step explanation:

For this case we know that mean time that visitors stay at a museum is given by:

\bar X = 94.2

The standard deviation is given by:

s= 15.5

And the standard error is given by:

SE = \frac{s}{\sqrt{n}} =3.1

And we want to interval captures 68% of the means for random samples of 25 scores and for this case the critical value can be founded like this using the normal standard distribution or excel:

z_{\alpha/2}= \pm 0.994

We can find the interval like this:

\bar X \pm ME

And replacing we got:

94.2 -0.994*3.1 = 91.1186

94.2 +0.994*3.1 = 97.2814

And the 68% confidence interval is given by (91.1186, 97.2814)

7 0
3 years ago
Solve each of the following equations by the trial and error method : A) X- 7= -3 help some one now​
Vaselesa [24]

Answer:

X - 7 = - 3

X = - 3 + 7

X = 4

the 7 turns positive because it was moved to the other side of the symbol "=" so we reverse the sign

- becomes +

and

+ becomes -

8 0
3 years ago
verifica care dintre urmatoarele numere sunt cuburi perfecte:2 la puterea a 8, 27, 64, 5 la puterea 48, si 7 la puterea 225
4vir4ik [10]

Answer:

Step-by-step explanation:

8,27,64,548, it is 355

6 0
2 years ago
A)
spin [16.1K]

Answer:

Step-by-step explanation:

B

5 0
3 years ago
Read 2 more answers
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