Answer:
90°
Step-by-step explanation:
Circle C has radius √36 = 6
Circle D has radius √18 = 3√2
As the D radius intersecting either point of tangency, does so at a right angle.
The half angle θ between the tangents is
sinθ = 3√2 / 6 = ½√2
θ = 45°
so the angle between the tangents is 2(45) = 90°
Let the number be x.
6*x - 8 = 34
6x - 8 = 34
6x = 34 + 8
6x = 42
x = 42/6
x = 7.
Let the number be y.
y/2
y/2 + 16 = 20
y/2 = 20 - 16
y/2 = 4
y = 2*4
y = 8.
<span>A) 4x − 2y − z = −5
B) x − 3y + 2z = 3
C) 3x + y − 2z = −5
Looking at ALL 4 solutions, x =0 in all of them.
So, let's say x = 0, eliminate the "x's" and just keep equations B and C
</span>
<span>B) -3y + 2z = 3
C) y − 2z = −5
</span>Add B) and C)
-2 y = -2
y = 1
<span>1 − 2z = −5
</span>-2z = -6
z = 3
and x = 0
There are three steps in calculating the slope of a straight line when you are not given its equation.<span>Step One: Identify two points on the line.Step Two: Select one to be (x1, y1) and the other to be (x2, y2).<span>Step Three: Use the slope equation to calculate slope.</span></span>
