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3 years ago

A right triangle has the following vertices (7,-3), (4,-3), (4,9) find the area of a right triangle

Mathematics

2 answers:

laila [671]3 years ago

6 0

Answer:

Step-by-step explanation:

kumpel [21]3 years ago

3 0

Answer:

Step-by-step explanation:

36 square units

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The circle shows circle C with diameter LM and inscribed angle LMN. The measurement for angle LMN is 32 what is the measurement

Shtirlitz [24]

The measure of arc LMN = 2 mesure of angle LMN ==> 64°

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3 years ago

Matt bought an iPod from the Apple Store for $350. If it's value will depreciate by $52 a year, how much should Matt sell his iP

Bogdan [553]

Decreasing by $52 every year, we need to subtract 52 for each year.

350 is the original price.
52x is the amount decreased by how many years

350 - 52(3) = ?
350-156 = 194

Answer: Matt should sell his iPod for $194 in 3 years

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3 years ago

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3 years ago

Find the area. 7cm,5cm,5cm,10cm,22cm, 20cm

Fantom [35]

Answer:

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Step by step explanation:

8 0

2 years ago

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A sample was taken of the salaries of four employees from a large company. the following are their salaries, in thousands of dol

Free_Kalibri [48]

For given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

The formula for the variance is,

$S^2=\frac{\sum (x_i - \bar{x})^2}{n-1}$

where,

$S^2$ = sample variance

$x_i$ = the value of the one observation

$\bar{x}$ = the mean value of all observations

n = the number of observations

For given question,

n = 4

First we find the mean of their salaries.

(33 + 31 + 24 + 36 ) / 4 = 31

So, $\bar{x}=31$

Using the formula for variance ,

$S^2=\frac{(33-31)^2}{4-1}+\frac{(31-31)^2}{4-1}+\frac{(24-31)^2}{4-1}+\frac{(36-31)^2}{4-1}\\\\ S^2=\frac{4}{3} + \frac{0}{3} + \frac{49}{3} + \frac{25}{3} \\\\S^2= \frac{4+49+25}{3}\\\\S^2=\frac{78}{3} \\\\S^2=26$

Therefore, for given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

Learn more about the variance here:

brainly.com/question/13673183

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1 year ago