ANSWER
EXPLANATION
First we need to find the equation of the boundary line which passes through (-1,-3) with a y-intercept of -5.
The slope of this line is
The equation of this line is
Since the boundary line is solid and the upper half plane is shaded the required inequality is
Answer:
2
Step-by-step explanation:
The distance between foci is the root of the difference of the squares of the axes lengths:
d = √(10² -8²) = √36 = 6
Then the radius of the circle is half the difference between this and the length of the major axis:
r = (10 -6)/2 = 4/2
r = 2
I got 2 radical 2 as the answer using distance formula
Lines s and t are perpendicular. As you know perpendicular lines, slope is opposite and reciprocal so if slope of line s = 5 then slope of line t = -1/5
