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4 years ago

Please help 20 points I can’t figure this out

Mathematics

1 answer:

Darya [45]4 years ago

7 0

Answer:

5.65

Step-by-step explanation:

Using distance formula, you get the square root of 16+16, so the square root of 32, which is approximately 5.656565

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A personal workout gym offers its customers $11 every month and an additional fee of $9 for maintenance. Write an expression to

erik [133]

Answer:

$80

Step-by-step explanation:

First I'll ask (cause I'm not an expert at english)(and I'm a child)

Additional fee for maintenance is a thing you pay every month right?

In that case,

Monthly fee per month (m): 11

Additional fee per month (a): 9

Total fee per month (t): [m+a] or [11+9]

Total fee for 4 months (x): (11+9)x4=80

Customers will have to pay $80 after 4 months.

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3 years ago

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Can someone please help me?(Fill in the blanks) This is on Khan Academy too, I need it ASAP! if you answer right I'll mark you B

Travka [436]

First divide both sides by 2:

$2x^2+7x+6=0\implies x^2+\dfrac72x+3=0$

Move the constant term to the right side:

$x^2+\dfrac72x=-3$

Since

$(x+y)^2=x^2+2xy+y^2$

we want to have

$2y=\dfrac72\implies y=\dfrac74$

Then

$\left(x+\dfrac74\right)^2=x^2+\dfrac72x+\dfrac{49}{16}$

So in our equation, we need to add 49/16 to both sides in order to complete the square:

$x^2+\dfrac72x+\dfrac{49}{16}=-3+\dfrac{49}{16}$

$\implies\left(x+\dfrac74\right)^2=\dfrac1{16}$

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3 years ago

Which expressions are equivalent to x + x + x + 2?

Snezhnost [94]

Answer:

Uh oh! It looks like your question is missing some crucial information. Please repost it with any helpful information such as diagrams, excerpts, or answer choices needed to solve it.

Step-by-step explanation:

3x + 2 is one possible choice

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3 years ago

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vladimir1956 [14]

Answer:

-13

Step-by-step explanation:

x+4=-9

-4 -4

x= -13

If you did 9+4 you'd get 13. But instead its negative because x is negative.

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3 years ago

Divide 28 cans of soda into two groups so the ratio is 3 to 4

masha68 [24]

The answer is: 12:16

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3 years ago

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