Answer:
B
Step-by-step explanation:
We have
Here the value of a is always positive because distance is positive
Next, we factor out 7 to get our period
So our period is
Next, our phase shift we set the inner parenthesis equal to 0.
So our phase shift is -3/7
Answer:
0.9953, 3.3629<x<4.0371
Step-by-step explanation:
Given that slader the internal revenue service claims it takes an average of 3.7 hours to complete a 1040 tax form, assuming th4e time to complete the form is normally distributed witha standard devait of the 30 minutes:
If X represents the time to complete then
X is N(3.7, 0.5) (we convert into uniform units in hours)
a) percent of people would you expect to complete the form in less than 5 hours
=
b) P(b<x<c) = 0.50
we find that here
c = 4.0371 and
b = 3.3629
Interval would be
Answer:
slope (m)= 1/2
y-intercept: (0, -1)
equation: y=x-1
Step-by-step explanation:
slope is =
y-intercept is where the line crosses the vertical axis (y-axis) so its (0, -1)
using point slope form:
y-y1=m(x-x1)
y-(-1)=1/2(x-0)
y+1=1/2x
y=x-1
Answer:
Step-by-step explanation:
Substitute the second equation into the first one:
Substitute into the second equation: