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DanielleElmas [232]
3 years ago
10

Solve the system of linear equations by elimination. x+6y=28 2x−3y=−19

Mathematics
1 answer:
bekas [8.4K]3 years ago
8 0
The answer is: x = -4 and y = 11/3
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A supplementary angle is split into 2 angles. One angle is 2x + 20°. The other angle is 40°. Solve for x and find the measuremen
IrinaVladis [17]

Answer:

x=60 and the missing angle is 140

Step-by-step explanation:

40 × 2x + 20= 180

60 + 2x =180

2x=120

x=60

2(60)+20=140

8 0
3 years ago
Please all answers I'm in a hurry
givi [52]
#2 is 35°C (just plug in 95 to the formula)

#3:
in the left column are:
(8x-(6+y))
(3/4)w+x^2

in the right column are:
y^2-0.5w
w/4+3(x+y)

to solve you just plug in to the formula
6 0
3 years ago
What is the probability of not rolling a number larger than 4 with a fair die?
Fiesta28 [93]
Find the probability of rolling a number bigger than 4 and subtract that by 100%; 

P(5)= 1/6 <-- 6 possible outcomes, 1, 2, 3, 4, 5 or 6
P(6)= 1/6 

You could have rolled a 5 or 6. When the word or is used, the probabilities are added together, when and is used, they are multiplied. 

(1/6)+(1/6)=2/6 

1-P(5)+P(6) 
=1-(2/6) 
=(6/6)-(2/6)
=4/6 

Therefore the probability of not rolling a number larger than 4 is 4/6 or 2/3.

Hope I helped :) 
4 0
3 years ago
Hours GPA
Scilla [17]

Answer:

Step-by-step explanation:

The closer the line of best fit is to the points the more accurate it is.  The correlation coefficient gives a numerical rank, where 1 is a perfect fit and the closer to 0 it is the less accurate it is.

I need the values of the line at the same x values as the scatterplot points.  After you have that take the difference of the value of the line of best fit and the corresponding scatterpoint.  if the point is higher than the line then the resiual will be negative and if the point is lower the residual will be positive.  Do you have the equation of the line of best fit?

5 0
3 years ago
3) What are the new coordinates of A’, B’, and C’ if triangle ABC is rotated 270 degrees clockwise? Write the transformation rul
MissTica

Answer:

it would be same only as there are all sides same

3 0
3 years ago
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