HELP PLEASE ASAP ASAP MATH
1 answer:
Answer:
Option (1)
Step-by-step explanation:
Standard equation of the circle is,
(x - h)² + (y - k)² = r²
Here, (h, k) is the center of the circle and 'r' is the radius.
From the figure attached,
Radius of the circle = Distance between the points A and B
=
=
= 3
Center of the circle → A(1, -2)
Therefore, equation of the circle will be,
(x - 1)²+ (y + 2)² = 3²
(x - 1)² + (y + 2)² = 9
Option (1) will be the answer.
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Option A
Length of CD is 10 inches
<u><em>Solution:</em></u>
The diagram is attached below
Given that, Circle A and circle B are congruent
CD is a cord of both circles
AB = 24 inches
Radius = 13 inches
To find: length of CD
Draw a straight line connecting A and C
AC represents the radius of circle. Also given that radius is 13 inches, So AC = 13 inches
Given in question that AB = 24 inches
Therefore from figure, AO = AB/2 = 24/2 = 12
AO = 12
Let "b" be the length of CO
Therefore, CD = CO + OD = b + b
AOC forms a triangle, so we can use pythogoras theorem
Pythagorean theorem, states that the square of the length of the hypotenuse is equal to the sum of squares of the lengths of other two sides of the right-angled triangle.
By above definition for triangle AOC
Substituting AC = 13 and AO = 12 and OC = b
<em><u>Thus length of CD is:</u></em>
CD = b + b = 5 + 5 = 10
Thus length of CD is 10 inches
Answer:
I believe the answer is 7 and a half days
Step-by-step explanation:
15* = 7.5
If you take the 15 and multiply it by the you will get 7.5. Even if you divide the 15 by
Apologies if this is wrong. But I think this is the answer.
Hope I could help :)