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qaws [65]
3 years ago
11

I need to know how to solve this

Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer: thats hard

Step-by-step explanation:

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Cost of wood is $9.50. How much would it cost Matt to buy 2 1/2 metres?
gtnhenbr [62]

Answer:

23.75

Step-by-step explanation:

how this helped bye I would appreciated if u liked my comment tho

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3 years ago
What is the length of a rectangle with a width of 10 cm and area of 120 cm???
melamori03 [73]

Answer:

12cm

Step-by-step explanation:

Width = 10 cm

Area = 120 cm²

Length = ?

Area = Length(L) × Width(W)

120cm²  = L × 10cm

L = 120cm² ÷ 10 cm = 12cm

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3 years ago
Name this angle <br>X Х<br>4<br>Y<br>N ​
Katyanochek1 [597]

Answer:

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Step-by-step explanation:

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4 0
2 years ago
A college conducts a common test for all the students. For the Mathematics portion of this test, the scores are normally distrib
Jet001 [13]

Using the normal distribution, it is found that 58.97% of students would be expected to score between 400 and 590.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

The mean and the standard deviation are given, respectively, by:

\mu = 502, \sigma = 115

The proportion of students between 400 and 590 is the <u>p-value of Z when X = 590 subtracted by the p-value of Z when X = 400</u>, hence:

X = 590:

Z = \frac{X - \mu}{\sigma}

Z = \frac{590 - 502}{115}

Z = 0.76

Z = 0.76 has a p-value of 0.7764.

X = 400:

Z = \frac{X - \mu}{\sigma}

Z = \frac{400 - 502}{115}

Z = -0.89

Z = -0.89 has a p-value of 0.1867.

0.7764 - 0.1867 = 0.5897 = 58.97%.

58.97% of students would be expected to score between 400 and 590.

More can be learned about the normal distribution at brainly.com/question/27643290

#SPJ1

6 0
1 year ago
Find the common difference of the arithmic sequence 19 13 17 21
eimsori [14]

Answer:

sorry,this is not a question, has different answers

4 0
3 years ago
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