Given:


To find:
The obtuse angle between the given pair of straight lines.
Solution:
The slope intercept form of a line is
...(i)
where, m is slope and b is y-intercept.
The given equations are


On comparing these equations with (i), we get


Angle between two lines whose slopes are
is

Putting
and
, we get



Now,
and 
and 
and 
, so it is an obtuse angle and
, so it is an acute angle.
Therefore, the obtuse angle between the given pair of straight lines is 120°.
4/5 because 12/15 was simplified using 3.
Hello!
-6(3x - 2/3)
Distribute the -6
-18x + 4
The answer is D) -18x + 4
Hope this helps!
Answer:
the inverse of the quadratic function
is 
Step-by-step explanation:
We need to find inverse of the quadratic function
Let

Replace x and y

Now, we will solve for y
Adding 3 on both sides


Taking square root on both sides

Now replace y with 

So, the inverse of the quadratic function
is 
Answer:Gabriella worked 4 hours
Step-by-step explanation:
6 minus 2 equals 4 ... its simple subtraction