Write in function form
X+y=6..?

Answers

Answer 1

Answer: $x+y=6\ \ \ \ /-x\n\ny=-x+6\n\nfor\ x=0\to y=-0+6=6\to(0;\ 6)\n\nfor\ x=6\to y=-6+6=0\to(6;\ 0)$

Answer 2

Answer: function form being slope-intercept?

y=-x+6

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8/20 in simplest form

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?a. 1+-/21 i
b.-1+-/19i
c. 1+-2/19i
d. 1+-/19i

Answers

Answer:

The last option is the correct one

Explanation:

The general form of the quadratic equation is:

ax² + bx + c = 0

The given equation is:

x² + 20 = 2x

which can be rewritten as:

x² - 2x + 20 = 0

By comparison:

a = 1

b = -2

c = 20

The quadratic formula used to get the roots is shown in the attached image

We now substitute to get the roots as follows:

x = $(2+√((-2)^2-4(1)(20)))/(2(1)) = 1+√(19) i$

or x = $(2-√((-2)^2-4(1)(20)))/(2(1)) = 1-√(19) i$

Hope this helps :)

To solve x^2 + 20 = 2x. First, we take all values to the left hand side and equate it to zero. x^2 - 2x + 20 = 0 The quadratic formular is given by x = (-b + or - sqrt(b^2 - 4ac)) / 2a, where: a = 1, b = -2 and c = 20 x = (-(-2) + or - sqrt((-2)^2 - (4 x 1 x 20))) / (2 x 1) = (2 + or - sqrt(4 - 80)) = (2 + or - sqrt(-76)) / 2 = (2 + or - 2sqrt(-19)) / 2 = 1 + or - sqrt(-19) = 1 + or - sqrt(19) i. Therefore, the solution to x^2 + 20 = 2x is x = 1 + or - sqrt(19) i (option d).

How to solve linear equations by substitution?

5x+2y=9
x+y=-3

Answers

5x+2y=9 x+y=3

change x+y=3 into x=3-y

plug that equation into 5x+2y=9 where x is.

5(3-y)+2y=9

then distribute.

15-5y+2y=9

15-7y=9

minus 15.

-7y=-6

divide both sides by -7.

y is equal to -6/7.

then go back to the first equation and plug in for y.

and then you will get x.

then you will have (y,x)

$\begin{cases} 5x+2y=9 \n x+y=-3\end{cases} \n \n\begin{cases} 5x+2*(-3-x)=9 \n y=-3 -x\end{cases} \n \n\begin{cases} 5x-6-2x =9 \n y=-3 -x\end{cases}\n \n\begin{cases} 3x =9+6 \n y=-3 -x\end{cases}$

$\begin{cases} 3x =15 \ \ /:3 \n y=-3 -x\end{cases} \n \n\begin{cases} x =5 \n y=-3 -5\end{cases} \n \n\begin{cases} x =5 \n y=-8\end{cases}$

Fish are sold at 10 for $8.64. What will be the cost of 16 fish

Answers

The cost of 16 fish would be $13.824.

How to determine What will be the cost of 16 fish

To find the cost of 16 fish, we can set up a proportion based on the given information:

10 fish cost $8.64

So, 1 fish would cost $8.64 / 10 = $0.864

Now, we can find the cost of 16 fish:

Cost of 16 fish = 16 × $0.864 = $13.824

Therefore, the cost of 16 fish would be $13.824.

Learn more about proportion at brainly.com/question/1496357

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8.64/10 = 0.864 per fish

.864 x 16 = $13.82

Nina walked 3.7 miles everyday for one month how many miles in all did she walk in 31 days

Answers

Nina walked 114.7 miles in 31 days. All you have to do is multiply 3.7 by 31

the refreshment stand at the fair was open for 3 hours four people took turns working at the stand for the same amount of time how many minutes did each person work

Answers

first off, simplify 3 hours. One hour is equal to 60 minutes, so we get 180 minutes. Next we divide 180 by four. We can make this easier by dividing 180 by ten, and multiplying it by 10 after we do everything. 4 times 4 is 16, and then the remaining 2 divided by 4 is .5. We have 4.5, but now we need to multiply 4.5 by 10, and we get 45. The answer is 45.

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