Answer:
The slope is -.3125 and the y intercept is 25
The x intercept is 80
Step-by-step explanation:
2.5x+8y=200
We want to get this in slope intercept form so we will solve for y
Subtract 2.5x from each side
2.5x-2.5x+8y=-2.5x +200
8y = -2.5x +200
Now divide by 8 on both sides
8y/8 = -2.5x/8 + 200/8
y = -.3125x +25
This is in the form y = mx+b where m is the slope and b is the y intercept
The slope is -.3125 and the y intercept is 25
To find the x intercept, set y = 0 and solve for x
2.5x+8y=200
2.5x = 200
Divide by 2.5 on each side
2.5x/2.5 = 200/2.5
x =80
None it doesn’t say anything about pennies in the bag just marbles
-2K^2-10
i think this may be right
Answer: b. (.54, .71)
Step-by-step explanation:
Confidence interval for population proportion is given by :-
,where = sample proportion
z= Critical z-value
n= sample size.
Let p be the proportion of people who support additional handgun control.
As per given , we have
n= 80
Critical z-value for 90% confidence interval is 1.645
Now , a 90% confidence interval for the population proportion of those who support additional handgun control will become:
So the correct answer is : b. (.54, .71)