Answer:
The answer to your question is below
Step-by-step explanation:
2 3
Vertex (-4, -9) (-0.5, -3)
Max/min value Min of -9 Min of -3
Axis of symmetry x = -4 -0.5
Zeros -1 and -7 -3 and 2
Direction up up
y-intercept 6 -3
4 5 6
Vertex (-1, -2) (0, 0) (2, 1)
Max/min value Max = -2 Min = 0 Min = 1
Axis of symmetry x = -1 x = 0 x = 2
Zeros None 0 None
Direction down up up
y-intercept -4 0 3
417.5 Miles distance
Driving Time: 6 hrs 49 mins
Flight time: 1 hrs 30 mins
Walk time: 142 hrs (Average speed)
Bike time: 39 hrs (Average speed)
Hope this helps!
So, if written as an expression:
4(x+3)=16
Now, all you have to do is rewrite for x
x+3 = 4
Subtract 3 from both sides
x = 4-3
x = 1
Hope this helps!
Answer:
Mr. Linx wages = x = $15
Mrs. Lynn wages = y = $17.50
Step-by-step explanation:
Mr. Linx wages = x
Mrs. Lynn wages = y
x + y = 32.50 (1)
35x + 37y = 1,172.50 (2)
From (1)
x = 32.50 - y
Substitute x = 32.50 - y into (2)
35x + 37y = 1,172.50
35(32.50 - y) + 37y = 1172.50
1137.5 - 35y + 37y = 1172.50
- 35y + 37y = 1172.50 - 1137.50
2y = 35
y = 35/2
y = 17.50
Substitute y = 17.50 into (1)
x + y = 32.50
x + 17.50 = 32.50
x = 32.50 - 17.50
x = 15
Mr. Linx wages = x = $15
Mrs. Lynn wages = y = $17.50
Answer:
We need a sample size of at least 657.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of , and a confidence level of , we have the following confidence interval of proportions.
In which
z is the zscore that has a pvalue of .
The margin of error is given by:
45 percent of its claims have errors.
So
99% confidence level
So , z is the value of Z that has a pvalue of , so .
What sample size is needed if they wish to be within 5 percent of the actual
This is a sample size of at least n, in which n is found when M = 0.05.
We need a sample size of at least 657.