Given
m
∠
A
O
C
=
10
8
∘
m∠AOC=108
∘
m, angle, A, O, C, equals, 108, degrees
m
∠
A
O
B
=
3
x
+
4
∘
m∠AOB=3x+4
∘
m, angle, A, O, B, equals, 3, x, plus, 4, degrees
m
∠
B
O
C
=
8
x
−
2
8
∘
m∠BOC=8x−28
∘
m, angle, B, O, C, equals, 8, x, minus, 28, degrees
Find
m
∠
A
O
B
m∠AOBm, angle, A, O, B:

6hryt%4578855

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

true

step-by-step explanation:

intersecting chords are just lines that intersect. so a line is equal to 180 degrees, so when it is intersected by another chord, then it create supplementary angles, and because the lines cross, vertical angels are also formed.