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pashok25 [27]
3 years ago
12

Find the equation of the line Use exact numbers.

Mathematics
1 answer:
polet [3.4K]3 years ago
3 0

→Answer:

y = -1/4x - 6

→Step-by-step explanation:

Well it is a negative slope with a y intercept of -6.

And to spring the slope we need to use the following formula.

\frac{y^2-y^1}{x^2-x^1}

So we need 2 points on the line to use the formula.

(-4,-5) (0,-6)

-6 - -5 = -1

0 - -4 = 4

So the slope is -1/4.

Hence, the equation is y = -1/4x - 6

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Answer:

a joke? someone who jokes around?

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A regular octagonal pyramid has a base edge of 3m and a lateral area of 60m^2. Find its slant height.
Olin [163]
Octagon = 8-side polygon

<u>Find area of 1 triangle:</u>
Area of one side triangle = 60 ÷ 8 = 7.5 m²

<u>Given area and length, find height:</u>
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Area = 1/2 x base x height
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4 0
3 years ago
Which of the following best describes a line
finlep [7]

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The U.S. Census Bureau announced that the median sales price in 2014 for new homes was $282,800 and the mean sales price was $34
victus00 [196]

Answer:

a) 0.9964

b) 0.3040

Step-by-step explanation:

Given data:

standard deviation =  $90,000

Mean sales price =$345,800

sample mean =  $370,000

Total number of sample = 100

calculate z score for [/tex](\bar x = 370000)[/tex]

z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{370000 - 345800}{\frac{90000}{\sqrt{100}}}

z = 2.689

P(x<370000) = P(Z<2.689)

FROM STANDARD NORMAL DISTRIBUTION TABLE FOR Z P(Z<2.689) = 0.9964

B)

calculate z score for (\bar x = 350000)

z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{350000 - 345800}{\frac{90000}{\sqrt{100}}}

z = 2.133

P(350000 \leq \bar x \leq 365000) = P(0.467 \leq Z\leq 2.133) = P(Z\leq 2.133) - P(Z\leq 0.467)

FROM NORMAL DISTRIBUTION TABLE Z VALUE FOR

P(Z\leq 2.133) = 0.9836

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SO,  = 0.9836 - 0.6796 = 0.3040

4 0
3 years ago
Number 3 need the answer
Pepsi [2]

Answer:

8

Step-by-step explanation:

one negative* one negative = always positive

4 0
3 years ago
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