2 years ago

Circumference and area of a circular piece of glass

Mathematics

1 answer:

Vadim26 [7]2 years ago

8 0

Answer:

Area = πr²

Circumference = 2πr

You can use pie as both 22/7 Or 3.14

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

You might be interested in

A bird flies 1 mile north, then 1 mile east. how far is it from where it started?

andrew-mc [135]

1 mile.
hope this helps.
please mark as braininess.

5 0

2 years ago

A standardized exam's scores are normally distributed. In a recent year, the mean test score was 1491 and the standard deviati

Alinara [238K]

Answer:

$z(1910)=1.3429\\\\z(1230)=-0.9006\\\\z(2190)=2.2404\\\\z(1380)=-0.3558$

Step-by-step explanation:

-Given the population mean is $\mu=1491$ and the standard deviation is $\sigma=312$ , we calculate the z-scores using the formula:

$z=\frac{\bar x-\mu}{\sigma}$

#The z-score for 1910 can be calculated as:

$z(1910)=\frac{x-\mu}{\sigma}\\\\=\frac{1910-1491}{312}\\\\=\frac{419}{312}\\\\=1.3429$

#The z-score for 1230can be calculated as:

$z(1230)=\frac{x-\mu}{\sigma}\\\\=\frac{1230-1491}{312}\\\\=\frac{-281}{312}\\\\=-0.9006$

#The z-score for 2190 is calculated as follows:

$z(2190)=\frac{x-\mu}{\sigma}\\\\=\frac{2190-1491}{312}\\\\=\frac{699}{312}\\\\=2.2404$

#The z-score for 1380 is calculated as:

$z(1380)=\frac{x-\mu}{\sigma}\\\\=\frac{1380-1491}{312}\\\\=\frac{-111}{312}\\\\=-0.3558$

7 0

2 years ago

What’s 4x(6x+72) For x=7

Murljashka [212]

if x=7:

4*7(6*7+72)

28(42+72)

28(114)

=3192

3 0

3 years ago

Read 2 more answers

Help me please! :) ㏒(4x)=2

Ray Of Light [21]

Answer: x=25 work below :)

4 0

2 years ago

Which word describes the slope of the line? positive negative zero undefined

Sophie [7]

Answer:

Negative slope

Step-by-step explanation:

It is negative.

8 0

1 year ago