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Reptile [31]
4 years ago
15

9y - 2= 5(2y + 4) UGHHHHHH!

Mathematics
2 answers:
jonny [76]4 years ago
5 0

9y-2= 5(2y+4)

9y-2= 10y+20

9y-10y-2= 10y-10y+20

-y-2= 20

-y-2+2= 20+2

-y= 22

Multiply by -1 for -y and 22

-y(-1)= 22(-1)

y= -22

Answer is y= -22

hammer [34]4 years ago
3 0

Answer:

y = -22

Step-by-step explanation:

9y - 2= 5(2y + 4)

9y - 2 = 10y + 20

-22 = y

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Amalia and Alec are studying the growth of a plant over time. They measure the height of the plant at the end of each week for s
EleoNora [17]

After 7 weeks the plant will 11.25 units tall if the equation for the best-fit line to be y = 2.5 + 1.25x.

<h3>What is the line of best fit?</h3>

A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

\rm m = \dfrac{n\sum xy-\sum x \sum y}{n\sum x^2 - (\sum x)^2} \\\\\rm c = \dfrac{\sum y -m \sum x}{n}

We have a line of best fit:

y = 2.5 + 1.25x

Plug x = 7 weeks

y = 2.5 + 1.25(7)

y = 11.25 units

Thus, after 7 weeks the plant will 11.25 units tall if the equation for the best-fit line to be y = 2.5 + 1.25x.

Learn more about the line of best fit here:

brainly.com/question/14279419

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3 0
3 years ago
Can somebody plz report and ban CARDAA13 and CARIZASHINE
sweet [91]

Answer:

what did they do?

Step-by-step explanation:

3 0
3 years ago
Y + 5 = 2(x + 1) order pairs
kolbaska11 [484]
Y = 2x - 3, xeR
X = 3/2
8 0
3 years ago
Y=3x+4 solve show work
stealth61 [152]

One solution:
x= 0
Y = 3x+ 4  =  4

Another solution:
x = -3
Y = 3x + 4  =  -5

Another solution:
x = -1
Y = 3x + 4  =  1

Another solution:
x = 1
Y = 3x + 4  =  7

Another solution:
x = 5
Y = 3x + 4  =  19

Another solution:
x = -10
Y = 3x + 4  =  -26

Another solution:
x = 10
Y = 3x + 4  =  34


5 0
3 years ago
Please help ill mark brainliesta​
alexdok [17]

Answer: Neither

Step-by-step explanation:

y = -5/4 x + 3/4

y = 5/4 x + 3/4

Because -5/4 is not a negative reciprocal of 5/4 and because they are not the same, they are neither in parallel or perpendicular

4 0
3 years ago
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