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ra1l [238]
3 years ago
8

Find the mean of the data in the dot plot below.

Mathematics
1 answer:
Annette [7]3 years ago
8 0
Answer: 24 students

Explanation:

(20 + 23 + 25 + 28)/4
= 96/4
= 24

Therefore the mean is 24 students in the class.
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Question:How many joules of gravitational potential energy are stored in an object that has a mass of 8.5 kilograms and is held
Ivenika [448]

Answer:

166.6 joules

Step-by-step explanation:

The formular for potential energy is Mgh

Mass is 8.5 kg

g = acceleration due to gravity (9.8)

height is 2 meters

= 8.5 × 9.8 × 2

= 166.6 joules

Hence the potential energy is 166.6 joules

8 0
3 years ago
A function is represented by the values in the table.
andreev551 [17]
The function represented in the table is linear.
8 0
3 years ago
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Do not multiply by pi. Just use the whole number and do not try to include pi in the
IrinaK [193]

Answer:

Surface area = 1808.64in² and volume is 7234.56in³

Step-by-step explanation:

The figure above is a sphere, and it has a diameter of 24in

Radius = ?

Radius = diameter / 2

R = 24 / 2

R = 12in

Surface area of of sphere = 4πr²

Volume of a sphere = 4/3 πr³

π = 3.14

1. Surface area = 4 * 3.14 * 12²

Surface area = 4 * 3.14 * 144

Surface area = 1808.64in²

2. Volume of the sphere = 4/3πr³

Volume = 4/3 * 3.14 * 12³

Volume = 4/3 * 3.14 * 1728

Volume = 7234.56in³

The surface area of the sphere is 1808.64in² and the volume is 7234

56in³

4 0
3 years ago
Point A lies on the circle and has an x-coordinate of –3. Which value could be the y-coordinate for point A? 2.5 2.8
vodka [1.7K]

Answer:

the other point could be 2.8

Step-by-step explanation:

in circle values of both x and are almost equal in magnitude

since 2.8 is closest to 3 i magnitude

hence 2.8 will  be correct option

this point will lie in third coordinate

as  third coordinate has points

(-x,y)

and coordinates of points lie on the circle are

(-3,2.8)

8 0
3 years ago
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You decide to take your car on a drive through Canada, where gas is sold in liters and distances are measured in kilometers. Sup
12345 [234]

Answer:

the no of liters required is 50.55 liters

Step-by-step explanation:

Given that

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distance is 495 km

1 gal = 3.78 L

1 km = 0.6214 mi

We need to find out the no of liters of gas that would needed to complete a trip

So,

= (495 × 3.78 × 0.6214) ÷ (23)

= 50.55 Liters

hence, the no of liters required is 50.55 liters

7 0
3 years ago
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