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Aloiza [94]
3 years ago
6

11. The regression equation y=2x + 8 represents how many minutes a sound will last after applying x pounds of pressure to the sy

stem. If 4 pounds are applied, how long should we expect the sound to last.
Mathematics
1 answer:
Sidana [21]3 years ago
8 0
Then y=2(4)+8
          =8+8
          =16

You might be interested in
9. Which property is illustrated by 6 x 5 = 5 x 6?
MariettaO [177]
Communitive property
8 0
3 years ago
Read 2 more answers
**Solve by Elimination<br> 3 + 2x - y = 0<br> -3-7y = 10x<br> 7) x =<br> 8) y =
timofeeve [1]
Answer:

Explanation:

3 + 2x - y = 0
Or 2x - y = -3 (1)

-3-7y = 10x
Or -10x - 7y = 3 (2)

2x - y = -3 (1)
-10x - 7y = 3 (2)
———————

Multiply 5 to (1)

5(2x - y = -3)
-10x - 7y = 3
———————
10x - 5y = -15
-10x - 7y = 3
———————
-12y = -12
y = -12/-12
y = 1

Plug y value in (1)

2x - 1 = -3
2x = -3 + 1
2x = -2
x = -2/2 = -1

Therefore, x = -1 and y = 1
7 0
2 years ago
Graph f(x)=2x−1 and g(x)=−x+5 on the same coordinate plane.
Stels [109]
The solution is when the two functions meet x=2. The green function is f(x), and the red is g(x).

4 0
3 years ago
Read 2 more answers
Which expression is equivalent to (2x-5)-5x(x-4)
Murrr4er [49]
2x-5-5x²+20x
-5x+22x-5
7 0
3 years ago
Look at the following graph of the given equation. Determine whether the equation is a function. Explain why or why not.
Vadim26 [7]

The equation y=2x+2 is a function

Explanation:

Given that the graph contains the coordinates (-1,0), (0,2) , (1,4) and (2,6)

We need to determine whether the equation y=2x+2 is a function.

To determine the equation is a function, let us substitute the coordinates in the equation and check whether it satisfies the equation.

Let us substitute the coordinate (-1,0) in the equation y=2x+2

Thus, we have,

0=2(-1)+2

0=-2+2

0=0

Thus, the coordinate (-1,0) satisfies the equation y=2x+2

Substituting the coordinate (0,2) in the equation, we have,

2=2(0)+2

2=2

Thus, the coordinate (0,2) satisfies the equation y=2x+2

Substituting the coordinate (1,4) in the equation y=2x+2

4=2(1)+2

4=4

Thus, the coordinate (1,4) satisfies the equation y=2x+2

Substituting the coordinate (2,6) in the equation, we get,

6=2(2)+2

6=6

Thus, the coordinate (2,6) satisfies the equation y=2x+2

Hence, the coordinates (-1,0), (0,2) , (1,4) and (2,6) satisfies the equation y=2x+2

Thus, the equation y=2x+2 is a function.

6 0
3 years ago
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