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pogonyaev
3 years ago
11

the first term in an arithmetic series is 9, while the last term in the series is -191. if there are 25 terms in the series, wha

t is its sum?
Mathematics
1 answer:
yaroslaw [1]3 years ago
4 0
191+9 = 200
200/25 = 4
since you are decreasing, the number is negative,
thus the answer is -4
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Answer:

The line equation in slope-intercept form is:

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Hence, option D is true.

Step-by-step explanation:

Given the points

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Finding the slope between the points

\left(x_1,\:y_1\right)=\left(0,\:4\right),\:\left(x_2,\:y_2\right)=\left(5,\:2\right)

\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

m=\frac{2-4}{5-0}

m=-\frac{2}{5}

As the y-intercept is obtained by setting the value x = 0.

As we know that when x = 0, the vale of y-intercept y = 4

so the y-intercept is b = 4.

As the slope-intercept form is

substituting the slope m = -2/5 and the y-intercept b=4

y  = mx+b

y\:=-\frac{2}{5}x+4

Therefore, the line equation in slope-intercept form is:

y\:=-\frac{2}{5}x+4

Hence, option D is true.

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The vertices of a quadrilateral in the coordinate plane are known how can the perimeter of the figure be found
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Answer:

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Step-by-step explanation:

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