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Anna71 [15]
3 years ago
10

The surface area S , of a right rectangular prism with length l , width w ,and height h can be found using the formula below

Mathematics
1 answer:
Yakvenalex [24]3 years ago
3 0
First, replace all variables with the given values.
12(9) + 9(2) + 2(12) 
This should then equal 150, then the formula says to multiply this answer by 2. Doing so, should give a final answer of 300.

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A rectangular shape parking lot is to have a perimeter of 550 yards. If the width must be 93 yards because of a building code wh
svetlana [45]

Answer:

the length= 182 yards

Step-by-step explanation:

perimeter =550

width =93

length =x

perimeter of a rectangle = 2 length (2l)+ 2 width (2w)

550=2l+ 2(93)

550=2l+186

550-186=2l

364=2l

364/2 = 2l/2

182=l

therefore length(l) =182yards

8 0
3 years ago
When two objects reach the same time-space coordinates, they generally collide with each other. How is this different from what
nikklg [1K]

Answer:

Waves superimpose upon each other when they collide, while objects do not

Step-by-step explanation:

The main difference between the collision of waves and the collision of objects is simply the superposition principle.

When waves collide, they do not do so in the same way objects do. The superposition principle explains that waves can either collide in a constructive or destructive manner.

Case A: Waves colliding in a constructive manner

When waves collide in a constructive manner, this means that they are in phase, in simpler terms, it means that they have the same shape as they move through space-time. Constructive collision leads to a formation of a bigger wave with a higher amplitude. This is how stereo speakers operate. They produce louder sounds by releasing the same audio waves, causing them to superimpose upon each other.

Case B: Waves colliding in a destructive manner:

When waves are out of phase(i.e do not have the same shape as they move through space-time) and they collide, they try to cancel each other out, leading to a new wave with a weaker amplitude. This is how noise-cancelling headphones work. They emit an equal and opposite wave sound to the noise around your ears, thus cancelling it out.

4 0
3 years ago
Are the following polygons similar explain
ra1l [238]
<h3>Answer: No, they are not similar.</h3>

Technically, we don't have enough info so it could go either way.

==========================================================

Explanation:

We can see that the sides are proportional to each other, but we don't know anything about the angles. We need to know if the angles are the same. If they are, then the hexagons are similar. If the angles are different, then the figures are not similar.

Right now we simply don't have enough info. So they could be similar, or they may not be. The best answer (in my opinion) is "not enough info". However, your teacher likely wants you to pick one side or the other. We can't pick "similar" so it's best to go with "not similar" until more info comes along the way.

4 0
3 years ago
How to do improper fractions with 3.8 repeating
vivado [14]
3.88888=3.88888/1=38.8888888

so lets ssay our repeating decimal = a fraction x
x=3.888 is true
multiply by 10
10x=38.8888
now subtract fir frist eqation from second
10x-x=38.8888-3.888888
9x=35
divide both sides by 9
x=35/9
x=3 and 7/9

anser is 3.88=3 and 7/9

3 0
3 years ago
Simplify the following expression : (2x + 7y) (x – 3y) – (9x + 4) (3x - 2)
Dmitriy789 [7]
-25x^2+xy-21y^2+6x+8
8 0
3 years ago
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