Answer:
c) 1 & 3 only
Step-by-step explanation:
In the picture attached, an example of an inscribed angle is shown.
In the example, the vertex is point B, which lies on the circle.
A chord of a circle is a straight line segment whose endpoints both lie on the circle, like segments BA and BC from the picture
Use Pythagorean Theorem:
28^2+15^2=c^2
1009=c^2
Square both sides:
31.8
A
Answer:
B (for question 7)
Step-by-step explanation:
To find the slope, we use the equation
.
m = (-4+1)/(7+2) = -3/9 = -1/3
Since B is the only option that would give a slope of -1/3, B must be the answer.
(you can use this same method for question 8)
Answer:
Step-by-step explanation:
=> 20 + 12k - 7k - 8
=> 20 - 8 + 12k - 7k
=> 12 + 5k
=> 12 + 5k
<u>Hence correct answer is 12</u><u> </u><u>+</u><u> </u><u>5</u><u>k</u><u>.</u>
A = 2 + 3a + 6
a - 3a = 2 + 6
-2a = 8
a = 8/-2
a = -4