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2 years ago

Dan walk 51/2 times around a trail that is 21/2 miles long how far did he walk

Mathematics

1 answer:

Svetach [21]2 years ago

6 0

13 1/4 miles is what I got from multiplying the distance of the trail by the amount of times he walked around it

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What are you post to do when you have a decimal that is 0.09

allsm [11]

To write 0.09 as a decimal you have to divide numerator by the denominator of fraction 0.09 us not a fraction so it is a decimal already and finally we have 0.09 as a decimal equals 0.09

9/100=0.09 also

i hoped i help :)

3 0

3 years ago

Scores on a college entrance examination are normally distributed with a mean of 500 and a standard deviation of 100. What perce

Alla [95]

Answer:

The percentage is $P(350 < X 650 ) = 86.6\%$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 500$

The standard deviation is $\sigma = 100$

The percent of people who write this exam obtain scores between 350 and 650

$P(350 < X 650 ) = P(\frac{ 350 - 500}{ 100}$

Generally

$\frac{X - \mu }{\sigma } = Z (The \ standardized \ value \ of \ X )$

$P(350 < X 650 ) = P(\frac{ 350 - 500}{ 100}$

$P(350 < X 650 ) = P(-1.5$

$P(350 < X 650 ) = P(Z < 1.5) - P(Z < -1.5)$

From the z-table $P(Z < -1.5 ) = 0.066807$

and $P(Z < 1.5 ) = 0.93319$

=> $P(350 < X 650 ) = 0.93319 - 0.066807$

=> $P(350 < X 650 ) = 0.866$

Therefore the percentage is $P(350 < X 650 ) = 86.6\%$

3 0

3 years ago

What is <br> Y=(2x²+1)(x-3)

spin [16.1K]

Answer:

x intercept (3,0)

y intercept (0,-3)

Step-by-step explanation:

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2 years ago

Which inequality represents all possible solutions of -6n<-12

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The answer is n>2. ......

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3 years ago

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yanalaym [24]

Answer:

-1 is the only answer that is greater than -5

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3 years ago