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miskamm [114]
3 years ago
12

Find the area of the circle.

Mathematics
1 answer:
lidiya [134]3 years ago
5 0
Answer is 78.54, when rounding the decimals is becomes 78.50
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If a class have 32 students and 12 is girls, what is the percentage of girls
Vlad1618 [11]
Hey there! 

Here are the steps involved in answering this question:

1. Write 12 out of 32 as a fraction which is \frac{12}{32}

2. Turn the fraction into a decimal. To do this, divide the numerator by the denominator. The numerator is the top part of the fraction while the denominator is the bottom part of the fraction.

   \frac{12}{32} = 0.375

3.<span> You get 0.375. Now, turn this into a percent. Move the decimal, 2 places to the right or just multiply the decimal by 100.</span>

0.375 = 37.5%

The final answer is 37.5%.

<span>(If you feel that my answer has helped you, please consider rating it and giving it a thank you! Also, feel free to make the best answer, the brainliest answer!)
</span>
Thank you! :D
6 0
4 years ago
Read 2 more answers
Claim: Fewer than 94​% of adults have a cell phone. In a reputable poll of 1004 ​adults, 86​% said that they have a cell phone.
meriva

Answer: The value of test statistic = -10.67

Step-by-step explanation:

Test statistic for proportion:

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

, where p= population proportion

n= sample size

\hat{p} = sample proportion

AS per given,

p=0.94, n= 1004, \hat{p}=0.86

z=\dfrac{0.86-0.94}{\sqrt{\dfrac{0.94(1-0.94)}{1004}}}\\\\=\dfrac{-0.08}{\sqrt{\dfrac{0.0564}{1004}}}\\\\=\dfrac{-0.08}{\sqrt{0.0000561752988048}}\\\\=\dfrac{-0.08}{0.00749501826581}\\\\=-10.673756509\approx-10.67

i.e. the value of test statistic = -10.67

8 0
3 years ago
Simplify each expression below<br><br> A. (4.76)(12.5)
Ivahew [28]

Answer:

59.5

Step-by-step explanation:

cuz i know

8 0
3 years ago
if two triangles share a common side what else must be true for the SAS triangle congruence theorem to apply
Viktor [21]
They must share the same angle postion
5 0
3 years ago
Gerard has $30 to spend on lunches this month. Lunch costs him $1.50 each day. After Gerard buys lunch for 8 days, which stateme
Harrizon [31]
What i did is that i did $1.50 time 8 = $12.00 and then do $30.00-12.00=$18.00 
6 0
3 years ago
Read 2 more answers
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