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shusha [124]
2 years ago
6

Someone help pls ;-; im lost

Mathematics
1 answer:
Elodia [21]2 years ago
5 0

The formula of a circle is A=pi x radius^2

i cant see the blue and red numbers for some reason ill do the other 4 by plugging them in

yellow:153,94 rounded 153,9

green:1385.4

orange3019.1

purple:227

circumference formula c=2 X pi X r

yellow: 43.9

green: 132

orange: 194.8

purple: 53.4

plz correct me if im wrong

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Answer:

4 5/6

Step-by-step explanation:

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58/12 - 48/12 = 10/12 which can be reduced to 5/6 because 2 goes into 10 and 12 evenly

4 0
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A student is asked to solve the equation below and to justify her/his steps. Identify what, if anything, is incorrect in her/his
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3 years ago
Help? thank you <3
Oliga [24]

Answer:

Equation would be y=0x+2.

Step-by-step explanation:

b = 2

m = 0

using the formula,

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5 0
2 years ago
In a study of cell phone usage and brain hemispheric​ dominance, an Internet survey was​ e-mailed to 6977subjects randomly selec
kirza4 [7]

Answer:

Given :An Internet survey was​ e-mailed to 6977 subjects randomly selected from an online group involved with ears. There were 1337 surveys returned.

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n = 6977

x = 1337

We will use one sample proportion test

\widehat{p}=\frac{x}{n}

\widehat{p}=\frac{1334}{6977}

\widehat{p}=0.1911

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H_0:p=0.2\\H_a:p

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Refer the z table

P(z<-1.85)=0.0332

Significance level = 0.01=α

Since p value > α

So, we accept the null hypothesis .

So,the claim that the return rate is less than​ 20% is false.

7 0
2 years ago
Which relationship describes angles 1 and 2?
kupik [55]

Answer:

Supplementary angles

Adjacent angles

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They add up to a straight line, which is 180 degrees, therefore they are supplementary.

They also share a side and the corner point, hence adjacent.

5 0
3 years ago
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