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3 years ago

Rounded to the nearest thousands 6,842

Mathematics

2 answers:

mr_godi [17]3 years ago

4 0

7,000 is the answer to this. Your welcome

ValentinkaMS [17]3 years ago

4 0

7,000.
1 thousands place, rounded by the 100 place.
Below 5 round down, 5 or above round up.

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Find the x is qs bisects pqr and pqr=82

slavikrds [6]

if ∡PQR = 82°, and the ray QS bisects it, it cuts ∡PQR into two equal halves, ∡PQS and ∡RQS, each of which is then 82/2, or 41°.

$\bf \stackrel{\measuredangle PQS}{10x+1}=41\implies 10x=40\implies x=\cfrac{40}{10}\implies x=4$

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3 years ago

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Beyonce danced around the track tree times. The track was 400 meters. How many kilometers did she dance all together

IRISSAK [1]

Answer: 1,200,000

Step-by-step explanation

1 meter is 1000 kilometers and the track is 400 meters long, so you must multiply 400*1000=400,000

She danced around 3 times s you must multiply 400,000*3=1,200,000

6 0

3 years ago

Easy math not easy for me though help me help me

White raven [17]

The answer is -13
1 would become 1^2
-5 becomes -5x
and -13 stays as it is

7 0

3 years ago

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Find the variance of the following data. Round your answer to one decimal place. x 1 2 3 4 5 P(X=x) 0.3 0.2 0.2 0.1 0.2

Reptile [31]

The variance of a distribution is the square of the standard deviation

The variance of the data is 2.2

<h3>How to calculate the variance</h3>

Start by calculating the expected value using:

$E(x) = \sum x* P(x)$

So, we have:

$E(x) = 1 * 0.3 + 2* 0.2 +3 * 0.2 + 4 * 0.1 + 5 * 0.2$

This gives

$E(x) = 2.7$

Next, calculate E(x^2) using:

$E(x^2) = \sum x^2* P(x)$

So, we have:

$E(x^2) = 1^2 * 0.3 + 2^2* 0.2 +3^2 * 0.2 + 4^2 * 0.1 + 5^2 * 0.2$

$E(x^2) = 9.5$

The variance is then calculated as:

$Var(x) = E(x^2) - (E(x))^2$

So, we have:

$Var(x) = 9.5 - 2.7^2$

$Var(x) = 2.21$

Approximate

$Var(x) = 2.2$

Hence, the variance of the data is 2.2

Read more about variance at:

brainly.com/question/15858152

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2 years ago

X – 81 = 1<br> X = ? <br> Pleaseee help me I’m strugglinggg

Firdavs [7]

Answer:

$\huge{ \fbox{ \sf{82}}}$

Step-by-step explanation:

$\star{ \text{ \: x - 81 = 1}}$

$\text{Step \: 1 \: : Move \: 81 \: to \: right \: hand \: side \: and \: change \: it's \: sign}$

$\hookrightarrow{ \sf{x = 1 + 81}}$

$\text{Step \: 2 \: : Add \: the \: numbers : 1 \: and \: 81}$

$\hookrightarrow{ \sf{x = 82}}$

The value of x is 82

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

6 0

3 years ago

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