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3 years ago

Which phrase matches the algebraic expression bellow? 2(x+7)+10

Mathematics

1 answer:

Doss [256]3 years ago

7 0

Answer:

i think your answer is two times the sum of x and seven plus ten

if i am wrong than tell me

Step-by-step explanation:

hope this will help :)

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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

3 0

3 years ago

Look at the sections between the whole numbers on the number line below. How many equal parts are in each section? What fraction

noname [10]

You didn’t provide us with an image.

3 0

3 years ago

Plssss help<br><br>use the property that it says to solve the proportion ty

Kay [80]

Answer:

the answer is 45 over 6

Step-by-step explanation:

A shortcut is "2 x _____ is 6", which is 3.

Multiply 15 by 3 also, to get 45,

45/6

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3 years ago

How harmful are the emissions from cosmetic hygiene and cleaning products?

Andreyy89

Answer:

Many of the chemicals in these products are known as Volatile Organic Compounds . These chemicals off-gas into the air that we breathe which exacerbates respiratory conditions and in some cases can be deadly.

Step-by-step explanation:

hope it helps u!

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3 years ago

Read 2 more answers

Always sometimes never: one angle in a triangle is more than 90°

Afina-wow [57]

Answer: sometimes

Step-by-step explanation:

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3 years ago