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blondinia [14]
3 years ago
8

members of a comuntiy center have decided to paint a lrge circuler mural in the middle of the parking lot. The radius of the mur

al is to be 11 yards. Before they begin painting the mural,thay use rope to form the outline. How much rope will they need?
Mathematics
1 answer:
Maksim231197 [3]3 years ago
7 0

They will need 11 yards of rope


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5(2x-8)<br><br>please help. I will mark brainliest!​
noname [10]

Answer:

just multiply 2x-8 by 5

which is

10x - 40

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Add.<br><br> Express your answer in simplest form. <br><br> 5 tenths + 3 tenths = ?
mr Goodwill [35]
 0.5

+0.3
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0.8
The answer is 8 tenths

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What is the slope of the line that passes through the points (-2, -1)
Lera25 [3.4K]

Plug this into the formula y2 - y1 / x2 - x1

-2 = x1, x2 = 2, y1 = -1, y2 = -3

-3 - (-1) / 2 - (-2)

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3 years ago
Just this please helppp
Murrr4er [49]

The height of the <em>water</em> depth is h = 14 + 6 · sin (π · t/6 + π/2), where t is in hours, and the height of the Ferris wheel is h = 21 + 19 · sin (π · t/20 - π/2), where t is in seconds. Please see the image to see the figures.

<h3>How to derive equations for periodical changes in time</h3>

According to the two cases described in the statement, we have clear example of <em>sinusoidal</em> model for the height as a function of time. In this case, we can make use of the following equation:

h = a + A · sin (2π · t/T + B)     (1)

Where:

  • a - Initial position, in meters.
  • A - Amplitude, in meters.
  • t - Time, in hours or seconds.
  • T - Period, in hours or seconds.
  • B - Phase, in radians.

Now we proceed to derive the equations for each case:

Water depth (u = 20 m, l = 8 m, a = 14 m, T = 12 h):

A = (20 m - 8 m)/2

A = 6 m

a = 14 m

Phase

20 = 14 + 6 · sin B

6 = 6 · sin B

sin B = 1

B = π/2

h = 14 + 6 · sin (π · t/6 + π/2), where t is in hours.

Ferris wheel (u = 40 m, l = 2 m, a = 21 m, T = 40 s):

A = (40 m - 2 m)/2

A = 19 m

a = 21 m

Phase

2 = 21 + 19 · sin B

- 19 = 19 · sin B

sin B = - 1

B = - π/2

h = 21 + 19 · sin (π · t/20 - π/2), where t is in seconds.

Lastly, we proceed to graph each case in the figures attached below.

To learn more on sinusoidal models: brainly.com/question/12060967

#SPJ1

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