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xxTIMURxx [149]

3 years ago

11

an outdoor pavilion has 30 rows with 20 seats in the first row each row thereafter has 6 more seats using a formula find the tot

al of seats at the pavilion

1 answer:

MArishka [77]3 years ago

5 0

The file isn’t working on my phone

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The area of a compact disc is 452 4/7 square centimeters. What is the diameter of a compact disc ? Use 22/7 as an approximation

motikmotik

$\bf \textit{area of a circle}\\\\ A=\pi r^2~~ \begin{cases} r=radius\\ \cline{1-1} A=452\frac{4}{7} \end{cases}\implies 452\frac{4}{7}=\pi r^2\implies \cfrac{3168}{7}=\pi r^2 \implies \cfrac{3168}{7\pi }=r^2 \\\\\\ \stackrel{\pi =\frac{22}{7}}{\cfrac{3168}{7\cdot \frac{22}{7}}}=r^2\implies \cfrac{3168}{22}=r^2\implies 144=r^2\implies \sqrt{144}=r\implies 12=r \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill \stackrel{diameter=2r}{d=24}~\hfill$

6 0

3 years ago

38 x 97 help help help

Free_Kalibri [48]

Answer:

3686

Step-by-step explanation:

5 0

2 years ago

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How many asymptotes does the graph of this function have? F(x)=2/x(x+1)

astra-53 [7]

Answer:

Vertical Asymptotes: x=-1,0

Horizontal Asymptotes: y=0

No Oblique Asymptotes

5 0

2 years ago

a phone company offers two monthly plans. plan A costs 13 plus an additional 0.16 for each minute of calls. Plan B costs 24 plus

vladimir1956 [14]

Answer:

Let x represent number of calling minutes

Step-by-step explanation:

17 + .11x = 22 + .07x

.04x = 5

x = 5/.04 = 125 minutes, is the number of minutes the two plans cost the same

17 + .11*125 = $30.75 is the cost when the two plans cost the same

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3 years ago

A bag of balls is given to you which has 3 red balls, 4 green balls, 2 orange balls and 6 white balls. What is probability of pi

soldi70 [24.7K]

Probability of picking a green ball = number of green balls / total number of balls

Pr(green) = 4/(3+4+2+6) = 4/15

4 0

3 years ago

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