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fenix001 [56]
4 years ago
13

When a sound wave uncounters a barrier, what happens?

Mathematics
1 answer:
motikmotik4 years ago
8 0
A. The sound reflects I believe is the answer
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Why does the equation y=3x+5 Not represent a proportional relationship?
Afina-wow [57]

Answer:

see the explanation

Step-by-step explanation:

we now that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>

In this problem we have

y=3x+5

This is the equation of the line in slope intercept form

where

m=3\\b=5

The given equation not represent a proportional relationship, because the line not pass through the origin

In a proportional relationship the value of b (y-intercept) is equal to zero

6 0
4 years ago
Answer this question for a bonus 100 points Write the following statement in if-then form. "All freshman are required to attend
Alex73 [517]

Answer:

If you are a freshman, then you are required to attend orientation

Step-by-step explanation:

The if part is  the given part

The then part is what is going to happen

If you are a freshman, then you are required to attend orientation

4 0
3 years ago
Read 2 more answers
Help this is math grade10 helppp
san4es73 [151]

Answer:

Both are rational.

Step-by-step explanation:

a. 4/7 + (-1/3) = 5/21 which is rational

b. √4 x 2/5 = 4/5 which is rational

4 0
3 years ago
The side lengths of Triangle B are the side lengths of Triangle A. Which statement is not true about Triangle A and Triangle B?
Minchanka [31]

Answer:

They are not similar.

Step-by-step explanation:

3 0
3 years ago
If Mars is 225 million kilometers from the sun, how long does it take light from the sun to reach Mars?
VladimirAG [237]
We already know that the speed of light is 299,792 km/s.

225,000,000 km* (1 s/ 299,792 km) ≈ 751 s.
(Note that the unit cancels out so you get the answer)

It takes light about 751 seconds from the Sun to reach Mars~
4 0
4 years ago
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