The answer is 49 because x = 1/7 and 1/7^-2 =49
∠CAE = 120°
∠CAD = 60°
∠BAE = 180°
∠DEC = 30°
We start out with the fact that points C and D split the semicircle into 3 sections. This means that ∠BAC, ∠CAD and ∠DAE are all 60° (180/3 = 60).
Since it forms a straight line, ∠BAE is 180°.
Since it is formed by ∠CAD and ∠DAE, ∠CAE = 60+60 = 120°.
We know that an inscribed angle is 1/2 of the corresponding arc; since CD is 1/3 of the circle, it is 1/3(180) = 60; and this means that ∠DEC = 30°.
The interior angles of a triangle add up to 180 degrees
a = 1st angle, b = 2nd angle, c = 3rd angle
c = 6a
b = a + 60
a + b + c = 180
a + (a + 60) + (6a) = 180
8a + 60 = 180
8a = 180 - 60
8a = 120
a = 120/8
a = 15 <=== here is one angle
b = a + 60
b = 15 + 60
b = 75 <=== and another one
c = 6a
c = 6(15)
c = 90 <=== and the last angle
21,985,233 to the millions place is 22,000,000
Answer:
Identify all points and line segments in the picture below.
This image has the potential for visual bias, so there is no alternative text.
Select one:
a. Points: A, B
Line segments: bar(AB)
b. Points: A, B, C, D
Line segments: bar(AB)
c. Points: A, B, C, D
Line segments:
bar(AB), bar(BC), bar(CD), bar(AD), bar(BD), bar(AC)
d. Points: A, B, C, D
Line segments: bar(AB), bar(AC), bar(BD)
Step-by-step explanation:
