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3 years ago

2y = x + 9 x + y = -3 1) (-5,2) 2) -5 3) (2,-5) 4) 2

Mathematics

2 answers:

Yuliya22 [10]3 years ago

8 0

Answer:

I think the answer is 2

professor190 [17]3 years ago

6 0

I think the answer is 2

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A six pack of Coca Cola costs $3.55. What is the unit rate?

Serggg [28]

Answer:

Step-by-step explanation:

O.5917

Should be ur answer

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3 years ago

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Arithmetic Sequence.<br><br>What is the explicit formula for -39, -139, -139, -339?

creativ13 [48]

Answer:

an = -39 -100(n -1)

Step-by-step explanation:

The given sequence can be described by a 3rd degree polynomial.* However, we suspect a typo, and that your intention is to have a formula for the arithmetic sequence ...

-39, -139, -239, -339

This has a first term a1 = -39, and a common difference d = -100.

The model for the explicit formula is ...

an = a1 +d(n -1)

Filling in the given values, the formula you seek is ...

an = -39 -100(n -1)

_____

* That polynomial is ...

an = 50n^3 +350n^2 -800n +461

This gives a sequence that starts ...

-39, -139, -139, -339, -1039, -2539, -5139, -9139, ...

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3 years ago

The Jones drove 108 miles on 4 gallons of gas to the amusement park. At this rate how many

Tatiana [17]

Answer:

162 miles

Step-by-step explanation:

108m / 4g = 27m/g

27m = 1 g

27m x 6g = 162

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3 years ago

Convert the weight from kilograms to grams. Write your answer in standard form.

Elza [17]

Answer:

83g

Step-by-step explanation:

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3 years ago

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Please help! "Indicate the equation of the given line in standard form. The line containing the midpoints of the legs of right t

julsineya [31]

Nice. We're not really told which is the right angle. We can tell from the squared distances:

$AB^2=(1 - -5)^2 + (1-5)^2=6^2+4^2=52$

$BC^2=(3-1)^2+(4-1)^2=2^2+3^2=13$

$AC^2=(3- -5)^2+(4 -5)^2=8^2+1^2=65$

We see $AC^2=AB^2+BC^2$ so B is the right angle.

That was preliminary and probably indicated in an associated figure.

Now we want the line through the midpoint of the legs, AB and BC, in standard form.

The midpoint of AB is the average of the coordinates of A and B:

$\left( \dfrac{-5 +1}{2}, \dfrac{5+1}{2} \right) = (-2,3)$

The midpoint of BC is

$\left( \dfrac{1 + 3}{2}, \dfrac{1 + 4}{2} \right) = ( 2, \frac 5 2)$

The line through those points is

$(y - 3)(2 - -2)=(x - -2)(\frac 5 2 - 3)$

$4y - 12 = (x+2)(- \frac 1 2)$

$8y - 24 = -x -2$

$x + 8y = 22$

That's the answer. Let's check it.

Midpoint of AB is (-2,3), -2 + 8(3)=22 good.

Midpoint of BC is (2,5/2), 2+8(5/2)=22 good.

$\textrm{Answer: } x + 8y = 22$

4 0

4 years ago