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Nikitich [7]
3 years ago
5

How do you solve X+10y=-9 X=5y+21

Mathematics
1 answer:
oee [108]3 years ago
4 0

Answer:

Step-by-step explanation:

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the solution to the system of equation below is (−2, −1). 2x − 3y = −1 11x − 9y = −13 when the first equation is multiplied by −
Evgen [1.6K]
When the first equation is multiplied by -3, the sum of the two equation and any of the original equations will have the same solution as the original equations. Hence 5x = -10 and 11x - 9x = -13 will have a solution of (-2, -1).
6 0
4 years ago
Complete the equation of the line through (-9,-9) and (-6,0)
Rudik [331]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis.

According to the data of the statement we have the following points:

(x_ {1}, y_ {1}): (- 9, -9)\\(x_ {2}, y_ {2}): (- 6,0)

We found the slope:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {0 - (- 9)} {- 6 - (- 9)} = \frac { 9} {- 6 + 9} = \frac {9} {3} = 3

Thus, the equation is of the form:

y = 3x + b

We substitute one of the points and find b:

0 = 3 (-6) + b\\0 = -18 + b\\b = 18

Finally, the equation is:

y = 3x + 18

Answer:

y = 3x + 18

7 0
4 years ago
You randomly pull a pen from a bag of pens. The bag has 1 red pen, 2
RUDIKE [14]

Answer:

For red you have a 1/5% chance for pink you have a 2/4% chance also know as 50% chance

Step-by-step explanation:

5 0
3 years ago
By visual inspection, determine the best-fitting regression model for the data
Blizzard [7]
C. Linear

Explanation: We can see from the plot of the data that there is a linear line + i took that last year
3 0
2 years ago
Read 2 more answers
Please do in full working out
TiliK225 [7]

Answer:

0.09022

Step-by-step explanation:

this is basically about knowing how far to move the decimal point.

the decimal point is moved 4 places plus one place = 5 places to the left. so in the answer (9022) you must simply move the decimal place 5 to the left:

0.09022

4 0
3 years ago
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