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Fofino [41]
3 years ago
9

Which table of ordered pairs represents a proportional relationship?

Mathematics
1 answer:
Anna11 [10]3 years ago
6 0

Answer: a

Step-by-step explanation: i took the test

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What is the answer to <br> 5^2 (72-45)/5
gregori [183]
{5^2 (72 -45)}/5
= ( 5×5 × 27)/ 5
= 135.
7 0
3 years ago
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What is the greatest common factor of 75 and 50?
Oksana_A [137]

Answer:

25

Step-by-step explanation:


6 0
3 years ago
A room is 20 feet by 25 feet with a 10-foot ceiling. If Mickey paints the walls and the ceiling, how much surface area will he c
Svetradugi [14.3K]

Answer:

1400ft²

Step-by-step explanation:

Given

Room Dimension: 20 ft by 25 ft by 10 ft

Where Length = 20 ft

Width = 25 ft

Height = 10 ft

Required

Surface area of painted walls and ceiling

We'll assume that the room is rectangular in shape and all 4 sides are covered.

<em>This means that Mickey will paint 4 walls and 1 ceiling.</em>

The dimension of the 2 of the 4  walls is as follows;

20ft by 10ft, 25ft by 10ft,

Because opposite sides of a rectangle are equal, the dimension of the remaining 2 walls is: 20ft by 10ft, 25ft by 10ft

Calculating the area of the 4 walls;

Area = 20ft * 10ft + 25ft * 10ft + 20ft * 10ft + 25ft * 10ft

Area = 200ft^2 + 250ft^2 + 200ft^2 + 250ft^2

Area = 900ft^2

The dimension of the ceiling is as follows:

20ft by 25ft

Calculating the area of the ceiling

Area = 20ft * 25ft

Area = 500ft^2

So, the area Micky will cover = Area of 4 walls + Area of ceiling

Total Surface Area = 900ft^2 +500ft^2

Total Surface Area = 1400ft^2

Hence, Micky will cover 1400ft²

6 0
3 years ago
A Ferris wheel with a diameter of 50 feet has 30 equally spaced passenger cars. What is the length of the arc between the center
Mekhanik [1.2K]
5.2 feet
i needed to do the character limit

6 0
3 years ago
central angle of a sector is 72° and the sector has an area of 16.2(pie) ft^2. what is the radius of the circle?
Cloud [144]
Sector area = (central angle / 360) * PI * radius^2
sector area = (72 / 360) * PI * radius^2
radius^2 = sector area / [(72 / 360) * PI]
radius^2 = 16.2 * PI / [(1 / 5) * PI]
radius^2 = 16.2 / .2
radius^2 = 81
radius = 9

Source:
http://www.1728.org/radians.htm



6 0
3 years ago
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