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3 years ago

What is the formula for the circumference of a circle

Mathematics

1 answer:

ziro4ka [17]3 years ago

3 0

Answer:

C=(pi)diameter or C=2(pi)r

Step-by-step explanation:

gucci gang

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Round it to the nearest tenth

Gennadij [26K]

Answer:

none of these

Step-by-step explanation:

4 0

2 years ago

PLS PLS PLS PLS HURRRRRRRRRYYYYYYYYYY

vovangra [49]

A. first you can translate the lines 4 squares down.

then reflect the figure on th y line.

(attention: the rotation cant be done.)

B. yes they are. although we translated and reflected the figure l, we did not make any kind of change in size

good luck

8 0

2 years ago

Read 2 more answers

Find the area of the regular 2424-gon with radius 1010 mm.

Mkey [24]

Answer:

i got 32031.14

Step-by-step explanation:

the radious to the second power times pie

6 0

2 years ago

The water diet requires you to drink two cups of water every half hour from the time you get up until you go to bed, but otherwi

Elan Coil [88]

Answer:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

Step-by-step explanation:

For this case we have the following info given:

Weight before diet 180 125 240 150

Weight after diet 170 130 215 152

We define the random variable $D = before-after$ and we can calculate the inidividual values:

D: 10, -5, 25, -2

And we can calculate the mean with this formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And the deviation with:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i- \bar X)^2}{n-1}}$

And after replace we got:

$\bar D= 7, s_d = 13.638$

And the confidence interval for this case would be given by:

$\bar D \pm t_{\alpha/2} \frac{s_d}{\sqrt{n}}$

The degrees of freedom are given by:

$df = n-1= 4-1=3$

For the 95% of confidence the value for the significance is $\alpha=0.05$ and the critical value would be $t_{\alpha/2}= 3.182$ . And replacing we got:

$7-3.182 \frac{13.638}{\sqrt{4}}= -14.698$

$7+3.182 \frac{13.638}{\sqrt{4}}= 28.698$

6 0

2 years ago

Greg bought a jacket for $35.23, a flag for $10.75, and a baseball cap for $17.25. He paid $50 and

Ostrovityanka [42]

Answer:

His friend gave Greg a 20$ bill.

Step-by-step explanation:

35.23+10.75+17.25=63.23

63.23-50= 13.23

13.23+6.77= 20

5 0

2 years ago

Read 2 more answers