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o-na [289]
3 years ago
7

PLSS HELPP BRAINLIEST AND 65 POINTS pls do the graph too

Mathematics
1 answer:
Eddi Din [679]3 years ago
5 0

Answer:

\Large \boxed{ -x+65}

Step-by-step explanation:

Two points are (0, 65) and (10, 55)

Calculate slope <em>m</em>

\displaystyle m=\frac{y_2 - y_1}{x_2 - x_1}

\displaystyle m=\frac{55-65}{10-0}=-1

Use slope-intercept form

y=mx+b

y=-1x+b

<em>b</em>  is the y-intercept, y-intercept is (0,65)

y=-1x+65

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Twenty-five randomly selected students were asked the number of movies they watched the previous week. The results are as follow
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Answer:

a) x = 1.52

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Step-by-step explanation:

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x = \frac{5*0 + 9*1 + 5*2 + 5*3 + 1*4}{5 + 9 + 5 + 5 + 1} = \frac{38}{25} = 1.52

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s = \sqrt{\frac{5*(0-1.52)^2 + 9*(1-1.52)^2 + 5*(2-1.52)^2 + 5*(3-1.52)^2 + 1*(4-1.52)^2}{24}} = \sqrt{\frac{32.24}{24}} = 1.16

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The equations that can be used to find the lengths of the legs of the triangle are as follows:

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<h3>How to find the equation of a right triangle?</h3>

The equation that can be used to find the length of the leg of the right triangle uses Pythagoras theorem,

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48 = x² + 2x

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learn more on equation here: brainly.com/question/14992132

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