Answer:
d = √149 = 12.2
Step-by-step explanation:
Distance between 2 coordinates: d = √[(x2 − x1)^2 + (y2 - y1)^2]
d = √[(0 - 7)^2 + (2 - -8)^2]
d = √[(-7)^2 + (10)^2]
d = √[49 + 100]
d = √149 = 12.2
Which expression is equivalent to 1/2 (2+ 3x – 6)?
3x - 5
3/2x - 5
3x – 4
3/2x - 2
The Answer Is B
(a) If <em>f(x)</em> is to be a proper density function, then its integral over the given support must evaulate to 1:

For the integral, substitute <em>u</em> = <em>x</em> ² and d<em>u</em> = 2<em>x</em> d<em>x</em>. Then as <em>x</em> → 0, <em>u</em> → 0; as <em>x</em> → ∞, <em>u</em> → ∞:

which reduces to
<em>c</em> / 2 (0 + 1) = 1 → <em>c</em> = 2
(b) Find the probability P(1 < <em>X </em>< 3) by integrating the density function over [1, 3] (I'll omit the steps because it's the same process as in (a)):

Answer:C
20-3=17
Step-by-step explanation:
It would be 60 because all you do is double the radius because it is only half of the circle