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Otrada [13]
3 years ago
11

In this swimming pool design, explain how to find the area of the pool’s surface.

Mathematics
2 answers:
evablogger [386]3 years ago
4 0
To find the area of the pools surface you multiply the length times the width of the pool
Kruka [31]3 years ago
3 0

Answer:

Find the area of the rectangle. Then, find the area of the circle. The diameter is given, so take half that to get the radius. Multiply the area of the circle by half. Subtract the area of the half circle from the area of the rectangle.

Step-by-step explanation:

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Zigmanuir [339]
I’m pretty sure b but if not then probably a
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A pyramid with a square base has a volume of 120 cubic meters and a height of 10 meters. what is a side length of the base?
tamaranim1 [39]
Volume of Square Based Pyramid = (1/3)*(Side Length of Base)^2 *(height)

the given information are:
Volume = 120
height = 10

plug this in and get:
120 = (1/3)*(side)^2 *(10)
12 = (1/3)*(side)^2    [divided both sides by 10]
36 = (side)^2           [multiplied both sides by 3]
(side) = 6             [square rooted both sides]

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4 years ago
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jeyben [28]
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3 0
3 years ago
#7 I don't know how to solve this
____ [38]
30+1.95x=7.95x

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3 0
3 years ago
Does anyone know how to do this by solving with substitution
IRISSAK [1]

Answer:

Step-by-step explanation:

Question 1

System of equations is,

y = -6x -------(1)

y = -4x - 2 ---------(2)

Substitute the value of y from equation (1) to equation (2)

-6x = -4x - 2

-6x + 4x = -2

-2x = -2

x = 1

From equation (1)

y = -6(1)

y = -6

Question (2)

System of equations is,

-y = x --------(1)

3x + 5y = 20 ---------(2)

Substitute the value of x from equation (1) to equation (2)

3(-y) + 5y = 20

-3y + 5y = 20

2y = 20

y = 10

From equation (1)

-y = x

x = -10

Question (3)

System of the equations is,

y = -2x - 7 --------(1)

9x - 10y = 12 ----------(2)

Substitute the value of y from equation (1) to equation (2)

9x - 10(-2x - 7) = 12

9x + 20x + 70 = 12

29x = 12 - 70

29x = -58

x = -2

From equation (1)

y = -2(-2) - 7

y = 4 - 7

y = -3

8 0
3 years ago
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