Answer:
r=31
Step-by-step explanation:
2r=62
r=31
Make note of the coefficients in the first and fourth equations. They've been conveniently picked so that subtracting one equation from the other eliminates every variable but <em>t</em>. We have
(3<em>r</em> + 2<em>s</em> + <em>t</em> + 2<em>u</em> + 3<em>v</em>) - (3<em>r</em> + 2<em>s</em> + 3<em>t</em> + 2<em>u</em> + 3<em>v</em>) = 7 - 17
-2<em>t</em> = -10
<em>t</em> = 5
The slope of a line is rise over run, which is the change in y over the change in x. Here, the change in y over the change in x would simplify to (3-2)/(2-4). It does not matter what point you choose to put as the first value, but if you put that point as the first value for x, you have to do the same for y. This equation simplifies to our answer of a slope of 1/2 or 0.5
Answer:
dowload the link up the other one answer
Answer:
8π
Step-by-step explanation:
360° = 2πr = πd
120° = 1/3 * 360°
120° = 2/3πr = 1/3πd
If the radius r = 12:
arcAB = 2/3π * 12 = 8π
