The center of the circle is midpoint of the diameter:
The radius is equal the distance between C and Q:
An equation of a circle:
(x - a)² + (y - b)² = r²
(a; b) - a coordinates of a center
r - a radius
r = √65; (-3; 2) ⇒ a = -3 and b = 2
subtitute
(x - (-3))² + (y - 2)² = (√65)²
Answer:
the center: (-3; 2)the radius: √65the equation of the circle: (x + 3)² + (y - 2)² = 65
Answer:
4%
Step-by-step explanation:
2.5 divided by 2.6 equals .04
Answer:
she lost 15 pounds overall
Step-by-step explanation:
because if she lost 20 and gained 5 you need to subtract 5 from 20 and you get 15 so overall she has lost 15 pounds! I hope I helped!!!!
Answer:
choice 2) Yes
Triangle ACB is congruent to triangle XZY because of the Side-Side-Side theorem
k = 1.5
Answer:
57.885
Step-by-step explanation:
For such calculations a probability calculator is very helpful. The one in the attachment shows the 87th percentile to be 57.885.
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A table of the standard normal distribution will tell you the 87th percentile corresponds to a z-value of 1.12639. Then the X value is ...
X = Zσ +μ = 1.12639(7) +50 = 57.885