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fenix001 [56]
3 years ago
13

When a sound wave uncounters a barrier, what happens?

Mathematics
1 answer:
motikmotik3 years ago
8 0
A. The sound reflects I believe is the answer
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What is the solution to this equation?
Aleks04 [339]

b) -4

- 8x +4 =36

First, we subtract 4 from 36 to get 32

36-4=32

-8x=32

Since a negative times a negative equals a positive, then the answer has to be negative because 36 is positive.

32 divided by 8 = 4

B) -4

4 0
3 years ago
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Which table of values matches the equation y=2x-3
Flauer [41]

Answer:

What are the possible answer??/

Step-by-step explanation:

5 0
3 years ago
Find the slope of each line
sladkih [1.3K]

Step-by-step explanation:

To find the Slope of each line, pick two points you can clearly identify on each graph. The first graph has a point (-5,5) and (4,-5). Using these two points find the difference of the y coordinates divided by the difference in the x coordinates, like this:

5 - (-5). = 10

-5 - 4 = - 9

So the Slope is - 10/9

Same steps for all. Your equation is

(y1 - y2) / (x1 - x2)

3 0
3 years ago
Jason had to replace the floor of a triangular portion of his dining room. The portion had a height that was twice as high as th
Eva8 [605]

Answer:

4 feet

Step-by-step explanation:

We know the the area of a triangle can be represented as \frac{bh}{2}.

Since the height is twice the base, we can substitute the value 2b in as h in the expression, making it \frac{b\cdot2b}{2}. If the area is 16, we can make the equation

\frac{b\cdot2b}{2} = 16

Now to solve for b.

\frac{2b^2}{2} = 16\\\frac{2b^2}{2}\cdot2 = 16\cdot2\\\\2b^2 = 32\\\\2b^2\div2 = 32\div2\\\\b^2 = 16\\\\b=4

Hope this helped!

3 0
3 years ago
Caroline drove 350 miles to her grandmother's house. the trip took her 51/4 hours. what is the average speed to miles per hour?
kvv77 [185]
350/ 5.25 = x/1

x= 67 miles per hour
6 0
3 years ago
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