3 years ago

Which equation is correctly represented by the following graph?

Mathematics

1 answer:

irina [24]3 years ago

6 0

Horizontal lines are = to y

it goes through 2.5

y = 2.5

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two long books containing a total of 2400 pages have a ratio of 3 pages to 5 pages. how may pages are in each book?

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4 years ago

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Usimov [2.4K]

The plant was 3 and a half inches.

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4 years ago

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How to solve 8 = 2^x + 4?

bearhunter [10]

8 = 2^x + 4
2^x = 8 - 4
2^x = 4
as you know 4 = 2^2 so now you have:
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4 years ago

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The average commute times for employees of a large company is 32 minutes. The commute time of 10employees are 40, 31, 32, 16, 25

Ira Lisetskai [31]

Given:

40,31,32,16,25,35,22,53,23 and 33.

Sample mean:

$\bar{x}=32$

Population mean:

$\mu=\frac{\Sigma(x_i)}{n}_{}$ $\mu=\frac{40+31+32+16+25+35+22+53+23+33}{10}$ $\mu=\frac{310}{10}$ $\mu=31$

$\sigma=\sqrt[]{\frac{\Sigma(x-\mu)^2}{n-1}}$ $\sigma=\sqrt[]{\frac{81+0+1+225+36+16+81+484+64+4}{10-1}}$ $\sigma=\sqrt[]{\frac{992}{9}}$ $\sigma=\frac{\sqrt[]{992}}{3}$ $\sigma=10.4987$ $\text{Error}=\pm z\times\frac{\sigma}{\sqrt[]{n}}$

z value is not given so taken as 95% on confidence level

$z=1.96$ $\text{Error}=\pm1.96\times\frac{10.4987}{\sqrt[]{10}}$ $\text{Error}=\pm6.5072$ $\text{Error}=\pm6.5$

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2 years ago

Y-intercept for x-2y=8

lukranit [14]

-4 first we rearrange the question x-2y=8

x-2y=8

-2y=-x+8

y=1/2x-4 (divide by -2 everywhere)

-4 is the y intercept.

7 0

3 years ago