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3 years ago

Select all the equations that have x = 0.9 as a solution

Mathematics

1 answer:

Solnce55 [7]3 years ago

7 0

C and d are going to be the answers to your question. >-< :)

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You start a chain email and send it to six friends. The next day, each of your friends forwards the email to six people. The pro

Stella [2.4K]

F= friends your friends sent the email to p=all the people that got the email 6f=p

8 0

3 years ago

6(x-2)=-18 what does x=

serious [3.7K]

Answer:

x = -1

Step by step explanation:

Distribute 6

6x-12= -18

Add 12 to both sides

6x= -6

Divide both sides by 6

x= -1

Hope this helps

5 0

3 years ago

Sonja plays tennis and started a tournament with 43 aces on the season. The graph relates her total season aces with the number

Pani-rosa [81]

<h2>Answer</h2>

$-6x+y=43$

<h2>Explanation</h2>

The first thing we need to do is find the slope of our line. To do it we are using the slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

where

$m$ is the slope of the line

$(x_{1},y_{1})$ are the coordinates of the first point on the line

$(x_{2},y_{2})$ are the coordinates of the second point

From our graph we can get the points (0, 43) and (2, 55), so $x_{1}=0$ , $y_{1}=43$ , $x_{2}=2$ , and $y_{2}=55$ . Let's replace the values in our slope formula:

$m=\frac{55-43}{2}$

$m=\frac{12}{2}$

$m=6$

Now that we have our slope, we can use the point-slope formula:

$y-y_{1}=m(x-x_{1})$

$y-43=6(x-0)$

$y-43=6x$

But remember that the equation of a line in standard form is $Ax+Ay=C$ , so we need to subtract $6x$ and add 43 to both sides of our point slope equation: