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2 years ago

(9m-12)+(-3^2+15-5m)

Mathematics

1 answer:

uranmaximum [27]2 years ago

4 0

Answer: 4m - 6

Step-by-step explanation:

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What is the mean of this discrete random variable?

melisa1 [442]

My answer is 28.5 i believe i just added all of my numbers for the x variable and i divided it by by 6 because thats how many numbers you have

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3 years ago

Waht 6/9 dividede 4/7 plzzzzzzzzzzzzzz help

levacccp [35]

Answer:

6/9 ÷ 4/7 = 1 1/6

Step-by-step explanation:

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Life insurance is designed to pay off all your debt at the time of your death. True False

sweet [91]

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Step-by-step explanation:

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3 years ago

Read 2 more answers

X²+y²-6x+14y-1=0<br> and please show your work so I can learn

Eva8 [605]

Hello there,

I hope you and your family are staying safe and healthy during this winter season.

$x^2 + y^2 -6x+14y-1=0$

We need to use the Quadratic Formula*

$x =\frac{-b+\sqrt{b^2}-4ac }{2a}$ , $\frac{-b-\sqrt{b^2} -4ac }{2a}$

Thus, given the problem:

$a = 1, b=-6, c=y^2+14y-1$

So now we just need to plug them in the Quadratic Formula*

$x=\frac{6+2\sqrt{(-6)^2-4(y^2+14y-1)} }{2}$ , $x=\frac{6-\sqrt{(-6)^2-4(y^2+14y-1)} }{2}$

As you can see, it is a mess right now. Therefore, we need to simplify it

$x=\frac{6+2\sqrt{10-y^2-14y} }{2}$ , $x = \frac{6-2\sqrt{10-y^2-14y} }{2}$

Now that's get us to the final solution:

$x=3+\sqrt{10-y^2-14y}$ , $x=3-\sqrt{10-y^2-14y}$

It is my pleasure to help students like you! If you have additional questions, please let me know.

Take care!

~Garebear

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2 years ago

The rate at which energy is used is called <br> work, voltage, power, or amperage.

SSSSS [86.1K]

Answer:

The rate at which energy is used is called power.

Step-by-step explanation:

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2 years ago