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Alex17521 [72]
3 years ago
9

What is the area the following circle either enter an exact answer in terms of pie or use 3.14 for pie enter your answer as a de

cimal. R=5 

Mathematics
2 answers:
statuscvo [17]3 years ago
3 0

Answer:

it will be 78.5 units ²

Gala2k [10]3 years ago
3 0
I think It would be 31.4 because you have to do 2r to get the diameter then the diameter multiplied by 3.14 which gets you 31.4. Hope this helps
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Pleaseeeeeeeeee help me
Slav-nsk [51]

Answer:

y - 35 = 6(x - 5)

Step-by-step explanation:

The point-slope equation of a line is

y - y_1 = m(x - x_1) ,

where

m = slope = \dfrac{y_2 - y_1}{x_2 - x_1}

and the point is

(x_1, y_1)

Let's find the slope.

m = slope = \dfrac{-31 - 35}{-6 - 5}

m = \dfrac{-66}{-11}

m = 6

We are asked to use the first point in the equation, so

x_1 = 5  and y_1 = 35

The equation is:

y - 35 = 6(x - 5)

4 0
2 years ago
The overhead reach distances of adult females are normally distributed with a mean of 205 cm205 cm and a standard deviation of 8
bekas [8.4K]
A) the probability is 0.123 or 12.3%.
B) the probability is 0.8589 or 85.89%.
C) the normal distribution can be used even though the sample is small because the population the sample is taken from is normally distributed.

Explanation
A) We first find the z-score that corresponds with this value.
z=\frac{X-\mu}{\sigma}
\\
\\=\frac{215-205}{8.6}= 1.1628

Using a z-table (http://www.z-table.com) we find 1.16; this corresponds to a probability of 0.8770.  However, This is the probability that a number will be lower than this; since we want the probability that the value is higher, we subtract from 1:

1-0.8770 = 0.123.

B) To find the probability of a sample mean, we use the formula
z=\frac{X-\mu}{\frac{\sigma}{\sqrt{n}}}
\\
\\=\frac{202.8-205}{\frac{8.6}{\sqrt{15}}}=-0.9908

Looking in our z-table we see that this corresponds with 0.1611.  Again, however, this is the area left of this value, which is the probability below; we want the probability above, so we subtract from 1:

1-0.1611 = 0.8589
5 0
3 years ago
WILL GIVE BRAINIEST AND 20 POINTS AND 5 STARS !! NEED HELP ASAP, PLEASE EXPLAIN STEP BY STEP.Kole works in an electronic store.
lord [1]

Answer:

0.42

Step-by-step explanation:

move the decimal point 2 to the left

6 0
3 years ago
Hi could you please tell me the answer to this?
devlian [24]

Answer:

5

Step-by-step explanation:

5

4 0
3 years ago
Help. again............................
Georgia [21]

What do u need help with ????

7 0
2 years ago
Read 2 more answers
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