Answer:
x = -3, y=2
Step-by-step explanation:
x+3y =3
3y -2x =12
Solve the first equation for x
x = 3-3y
Substitute this into the second equation
3y -2(3-3y) =12
Distribute
3y -6 +6y =12
Combine like terms
9y -6 =12
Add 6 to each side
9y-6+6 =12+6
9y =18
Divide each side by 9
9y/9 =18/9
y = 2
Now find x
x = 3 -3y
x = 3-3(2)
x = 3-6
x = -3
Answer:
49
Step-by-step explanation:
To complete the square we use the formula:
So we can plug in 14 for b to find c.
Now this equation can be factored into:
1.4 as a fraction is 1 4/10 (simplified to 1 2/5).
1 as they flipped a 6 sided cube and want to know the probability of rolling a 5
6-5=1
The answer is 1
A) Increase. This is because the mean of the first two cars is smaller than the mean of all three cars.
b) Cannot be determined. Need more values.
c) Cannot be determined. Need more values.
