Answer:
These two lines are parallel and system of these equations have no solution
Step-by-step explanation:
Parallel Lines: Lines having same slope and different x and y intercept are parallel lines. System of such equations does not have any solution as these lines does not intersect at any finite points.
Standard form of line is where
is slope and
is y-intercept.
First Line:
Second Line:
Hence these two lines are parallel and system of these equations have no solution
Answer:
a.
b.
c.
d.
Step-by-step explanation:
Gradient is just another similar term for slope l, , and it can be calculated by
where
and 1
is the
-coordinates of point
We let be point
and
be point
, we can then write the equation:
.
It also says that the points are with a gradient of so
. We can then write the equation:
Finding If
:
Writing an expression for in terms of
.
Writing an expression for in terms of
Finding if
Answer: 0.074
Step-by-step explanation:
Given : The total number of U.S. adults in the sample = 800
The number of U.S. adults dine out at a restaurant more than once a week = 216
The probability for an adult dine out more than once per week :-
If another person is selected without replacement ,then
Total adults left = 799
Total adults left who dine out at a restaurant more than once a week = 217
The probability for the second person dine out more than once per week :-
Now, the probability that both adults dine out more than once per week :-