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ludmilkaskok [199]
3 years ago
11

The Johnson’s great room is rectangular , 30 feet by 25 feet and has a 12-foot ceiling. How many square feet of carpet is needed

to cover is needed to cover the floor? What information is unnecessary in the problem
Mathematics
1 answer:
Oksana_A [137]3 years ago
4 0

that the celling is 12 feet

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Need help asappppppp​
PilotLPTM [1.2K]

Given:

The right triangular prism.

Height of prism = 28 in.

Hypotenuse of base = 25 in.

leg of base = 24 in.

To find:

The lateral surface area of the prism.

Solution:

Pythagoras theorem:

Hypotenuse^2=Perpendicular^2+Base^2

Using Pythagoras theorem in the base triangle, we get

25^2=24^2+Base^2

625-576=Base^2

\sqrt{49}=Base

7=Base

The perimeter of the triangular base is:

P=7+25+24

P=56

Lateral area of a triangular prism is:

A=Ph

Where, P is the perimeter of the triangular base and h is the height of the prism.

Putting P=56,h=28 in the above formula, we get

A=56(28)

A=1568

Therefore, the lateral area of the prism is 1568 in².

8 0
2 years ago
WILL GIVE BRAINLIEST WHAT IS THE FORMULA FOR SURFACE AREA
eimsori [14]

Answer:

Hi! The formula for surface area is:

area = 2lw + 2lh + 2hw

(l = length, w = width, h = height.)

<em>Hope this helps! :)</em>

8 0
3 years ago
Read 2 more answers
Solve the inequality and express the answer in interval notation
8_murik_8 [283]

Answer:

a

Step-by-step explanation:

6 0
3 years ago
6x-58+2x+4=5x<br>find the value of x
mariarad [96]
You pass the x in one side and numbers to the other side
8x-5x=58-4
add and subtract
3x=54
divide by 3
x=18
7 0
3 years ago
Suppose 80% of people enjoy swimming. Suppose 70% of people enjoy running.
Ede4ka [16]

Answer:

95%

Step-by-step explanation:

In this case we can apply a formula that tells us that:  

# (AUB) = #A + #B - #AnB  

Where A would be the ones who enjoy swimming and B would be the ones who enjoy running. AnB is the intersection of both sets, that is, those who enjoy doing both things, these values we have, if we replace them we have left:

#(AUB) = 80% + 70% - 55%

#(AUB) = 95%

Which means that 95% of people enjoy either swimming or running

6 0
3 years ago
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