Answer:
y = 1/2x -2
Step-by-step explanation:
The slope of the equation is over 1 and to the right by 2 so Rise/run = 1/2
The y-intercept is -2
The question is asking what will we get if we add 1+1.
Let us use an example to understand this.
Example:
Suppose Amy has 1 ice cream and her brother Ruth has also got one ice cream.
Now if they both finished their ice creams, how many total ice creams were finished.
So we see that 1 and 1 add up to give two ice creams and so two ice creams are finished by them both.
Applying this to our question adding 1 and 1 gives us 2.
Answer : 1+1 =2
Answer:
y=b-a/x
Step-by-step explanation:
yx+a=b
-a
yx=b-a/x
1. x=−y+8−z
2.x=−7−4y−5z (everything over 4)
3.x=2−z
1.y=-x+8-z
1.z=-x+4-y
2.y=7+4x-5x (everything over 4)
2.z=7+4x-4y (everything over 5)
3.z=2-x
Answer:
Check the explanation
Step-by-step explanation:
:proportion of male smoker lung deaths is same for the four given tar level categories.
:proportion of male smoker lung deaths is not the same for the four given tar level categories.
Expected frequency=1177/4=294.25
Tar level Observed Freq.(O) Expected Freq.(E) (O-E)^2/E
0-7 107 294.25 120.435
8-14 375 294.25 5.643
15-21 553 294.25 227.533
>=22 183 294.25 42.061
Total= 1177 1177 395.673
Total chi square score=395.673
df=4-1=3
p-value=CHIDIST(395.673,3)<0.001
p-value<0.001,Reject null hypothesis.
There is sufficient evidence that the proportion of male smoker lung deaths is not the same for the four given tar level categories.
