Answer:
$70
Step-by-step explanation:
The graph goes through the points (0, 10) and (8, 22), so the slope is ...
(22 -10)/(8 -0) = 12/8 = 1.5
Then the cost of a 40-pound box will be ...
cost = 1.5×pounds + 10
cost = 1.5×40 +10 = 70
It will cost $70 to airmail a 40-pound box.
Answer: 0,5, and -4 is the zeros
Step-by-step explanation:
Answer:
Uh just count how many boxes/units away a point is away from the line and keep on potting till the whole shape is formed.
Step-by-step explanation:
Answer:
I can't see it
Step-by-step explanation:
Why did you take a picture of it sideways
Answer:
The mean of the sample was of 7 and the margin of error was of 0.7.
Step-by-step explanation:
Confidence interval concepts:
A confidence interval has two bounds, a lower bound and an upper bound.
A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.
The margin of error is the subtraction between the bounds divided by 2.
In this question:
Lower bound: 6.3
Upper bound: 7.7
Mean of the sample is the point estimate, so: (6.3+7.7)/2 = 7
Margin of error: (7.7-6.3)/2 = 0.7
The mean of the sample was of 7 and the margin of error was of 0.7.