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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

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3 years ago
PLEASE HELP ITS URGENT
Nataly [62]

Answer:

I don't believe this is a mathematics related question....

Step-by-step explanation:

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3 0
3 years ago
Solve x2 − 10x = −13.
aev [14]

Answer:

B

Step-by-step explanation:

First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial x^{2}-10x+13. We can now use the quadratic formula to solve.

Remember that the quadratic formula is

\frac{-b+/-\sqrt{b^{2}-4ac } }{2a}

Substitute the numbers from the equation into the formula.

\frac{-(-10)+/-\sqrt{(-10)^{2}-4(1)(13) } }{2(1)}

Simplify:

\frac{10+/-\sqrt{100-52} }{2}

\frac{10+/-\sqrt{48} }{2}

Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with 5+/-\sqrt{48}.

Hope this helps!

6 0
2 years ago
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pshichka [43]

Answer:

a

Step-by-step explanation:

because it is

7 0
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