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3 years ago

PLS HELP ASAP!!! 30 POINTS (a) What is m<3 ? (b) What is ?

Mathematics

2 answers:

gogolik [260]3 years ago

5 0

Answer:

ACTUA,LY ITS

Step-by-step explanation:

2222

Butoxors [25]3 years ago

3 0

Step-by-step explanation:

angle 3 = 180-20-57 =103

angle 4 = 180 - 103 = 77

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Please help me (this is one questionn)

faust18 [17]

Answer:

Below.

Step-by-step explanation:

Reading off the graph:

y-intercept = (0, 2.5)

x-intercept = (3.5, 0)

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3 years ago

Hey can you help me fast!!!

kotykmax [81]

Answer:

12 ft²

Step-by-step explanation:

the rectangular hole area:

l • w = A

3 • 2 = 6 ft

the triangular hole area:

(b • h) / 2 = A

(4 • 3) / 2 = 6 ft

6 ft + 6 ft = 12 ft²

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3 years ago

Answer!!!!!Please!!!!Will do anything!!!

Marizza181 [45]

I think it is the first one

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3 years ago

Read 2 more answers

Write 675,000,000 in scientific notation.

Lostsunrise [7]

Answer:

= 6.75 × 10^8

Step-by-step explanation:

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4 years ago

Need help pls<br>thank you in advance

ira [324]

Answer:

<u />

$\textsf{Mean}\:\overline{X}=\sf \dfrac{\textsf{sum of all the data values}}{\textsf{total number of data values}}$

$\implies \sf Mean\:(Nilo)=\dfrac{5+6+14+15}{4}=\dfrac{40}{4}=10$

$\implies \sf Mean\:(Lisa)=\dfrac{8+9+11+12}{4}=\dfrac{40}{4}=10$

<h3><u>Standard Deviation</u></h3>

$\displaystyle \textsf{Standard Deviation }s=\sqrt{\dfrac{\sum X^2-\dfrac{(\sum X)^2}{n}}{n-1}}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Nilo)} & =\sqrt{\dfrac{(5^2+6^2+14^2+15^2)-\dfrac{(5+6+14+15)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{482-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{82}{3}}\\\\& = 5.23\end{aligned}$

$\begin{aligned}\displaystyle \textsf{Standard Deviation (Lisa)} & =\sqrt{\dfrac{(8^2+9^2+11^2+12^2)-\dfrac{(8+9+11+12)^2}{4}}{4-1}}\\\\& = \sqrt{\dfrac{410-\dfrac{40^2}{4}}{3}}\\\\& = \sqrt{\dfrac{10}{3}}\\\\& = 1.83\end{aligned}$

<h3><u>Summary</u></h3>

Nilo has a mean score of 10 and a standard deviation of 5.23.

Lisa has a mean score of 10 and a standard deviation of 1.83.

The <u>mean</u> scores are the <u>same</u>.

Nilo's standard deviation is higher than Lisa's. Therefore, Nilo's test scores are more <u>spread out</u> that Lisa's, which means Lisa's test scores are more <u>consistent</u>.

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2 years ago