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2 years ago

D. Direction: Plot following irrational numbers in the given number line.

Mathematics

1 answer:

Tju [1.3M]2 years ago

8 0

Answer:

Numbers and plot location given below:

√15 = 3.9 located between 3.8 and 4.0
√46 = 6.8 located between 6.7 and 6.9
√55 = 7.4 located between 7.3 and 7.5
√60 = 7.7 located between 7.6 and 7.8
√96 = 9.8 located between 9.7 and 9.9
√14 = 3.7 located between 3.6 and 3.9
√22 = 4.7 located between 4.6 and 4.8
√75 = 8.7 located between 8.6 and 8.9
√34 = 5.8 located between 5.7 and 5.9
√57 = 7.5 locate between 7.4 and 7.6

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Answer:

I don't get it

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

remember the priorities of the different mathematical operations

1. brackets

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so,

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1 year ago

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you run 1 mile in 8 minutes at a constant speed. How far do you run in 1 minute? write an equation to represent how far you can

Montano1993 [528]

Answer:

0.125

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Step-by-step explanation:

First divide 1 mile by 8 minutes

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Then you simply show 0.125 * x (x being the number you insert to find the distance) = How far you ran

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2 years ago

In a population distribution, a score of x=57 corresponds to z=-0.25 and a score of x=87 corresponds to z=1.25. Find the mean an

Serggg [28]

Here is dependence between scores and x-values:

$Z_i=\dfrac{X_i-\mu}{\sigma},$

where $\mu$ is the mean, $\sigma$ is standard deviation and i changes from 1 to 2.

1. When i=1, $Z_1=-0.25,\ X_1=57,$ then

$-0.25=\dfrac{57-\mu}{\sigma}.$

2. When i=2, $Z_2=1.25,\ X_2=87,$ then

$1.25=\dfrac{87-\mu}{\sigma}.$

Now solve the system of equations:

$\left\{\begin{array}{l}-0.25=\dfrac{57-\mu}{\sigma}\\ \\1.25=\dfrac{87-\mu}{\sigma}.\end{array}\right.$

$\left\{\begin{array}{l}-0.25\sigma=57-\mu\\ \\1.25\sigma=87-\mu.\end{array}\right.$

Subtract first equation from the second:

$1.25\sigma-(-0.25\sigma)=87-57,\\ \\1.5\sigma=30,\\ \\\sigma=20.$

Then

$1.25=\dfrac{87-\mu}{20},\\ \\87-\mu=25,\\ \\\mu=87-25=62.$

Answer: the mean is 62, the standard deviation is 20.

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3 years ago

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