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ad-work [718]
2 years ago
5

Find the distance between (-7, -2) and (11,3). Write your answer to one decimal. Your answer

Mathematics
1 answer:
scoray [572]2 years ago
4 0

Answer:

<h3>The answer is 18.7 units</h3>

Step-by-step explanation:

The distance between two points can be found by using the formula

d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  } \\

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-7, -2) and (11,3).

The distance between them is

d =  \sqrt{( { - 7 - 11})^{2}  +  ({ - 2 - 3})^{2} }  \\  =  \sqrt{ ({ - 18})^{2}  + ( { - 5})^{2} }  \\  =  \sqrt{324 + 25}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \:  \\  =  \sqrt{349}  \:  \:  \:  \:  \:  \:  \:  \:  \\  = 18.681541692... \:  \:  \:  \:  \:

We have the final answer as

<h3>18.7 units to the one decimal place</h3>

Hope this helps you

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3 years ago
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The loaves of rye bread distributed to a local store by a certain bakery have an average length of 30 centimeters and a standard
cupoosta [38]

Answer:

79.91% of loaves are between 26.94 and 32.18 centimeters

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 30, \sigma = 2

What percentage of loaves are between 26.94 and 32.18 centimeters

This is the pvalue of Z when X = 32.18 subtracted by the pvalue of Z when X = 26.94.

X = 32.18:

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

Z = \frac{32.18 - 30}{2}

Z = 1.09

Z = 1.09 has a pvalue of 0.8621

X = 26.94:

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

Z = \frac{26.94 - 30}{2}

Z = -1.53

Z = -1.53 has a pvalue of 0.0630

0.8621 - 0.0630 = 0.7991

79.91% of loaves are between 26.94 and 32.18 centimeters

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Step-by-step explanation:

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Drupady [299]

Answer:

for question 9 is not that hard

Step-by-step explanation:

take the 8% and just get rid of the percentage away and add a decimal like this 8. then you move it back which should make this 0.8 hope this helps for that section

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3 years ago
Find slope of (2,3) and (-5,6).
Archy [21]

Answer:

Slope is 3/-7

Step-by-step explanation:

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