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Ierofanga [76]
3 years ago
6

dave is painting a fence in his uncle's yard he painted 2 sections of the fence in 30 minutes Dave has 9 sections to paint. if D

ave paints at the same rate how many minutes will it take him to finish​
Mathematics
1 answer:
Scrat [10]3 years ago
7 0

Answer:

135

Step-by-step explanation:

30÷2≡15

<h3>15×9≡135</h3>
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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
Please help please help please help please help
ankoles [38]

Answer:

it is -5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which set of ordered pairs represents y as a function of x?
Fantom [35]
The answer for the question is C
3 0
3 years ago
3,1,2,2,3,2,6,4 ayuda con esto
zalisa [80]

Answer:

Step-by-step explanation:  

¿Qué necesitas para encontrar la mediana o el modo medio?

6 0
3 years ago
What is the distance between point A and point B?what is the ordered pair for each of the points plotted above?
Alekssandra [29.7K]

Answer:

A: (0,0), B: (3, -4), 5 units

Step-by-step explanation:

A: (0,0), B: (3, -4)

To find the distance, use the distance formula. Square-root((0-3)^2+(0-(-4))^2) ---> Square-root((-3)^2 + 4^2) ---> Square-root(9+16) ---> Square-root(25) ---> 5units.

6 0
3 years ago
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