Angle 5= 46
Angle 7= 46 They are opposite, therefore, they measure the same.
If angle 2 is 134 degrees, so is angle 4.
They are parallel to each other, so angle 2 equals to angle 6, angle 4 equals to angle 8.
The sum of the four angles (5, 6, 7, & 8) is 360. The sum of the angle 2 (6) and angle 4 (8) is 268 (134x2).
360-268=92
92/2=46 Angles 5 and 7 are equal to each other, and their sum is 92, then you just need to divide 92 by two
I do not know about the signs next to 5 and 7, though. I hope this helped you
Answer:Thus, the number of dimes is
7
and the number of nickels is 7
+
6
=
13
0.10
x
+
0.05
(
x
+
6
)
=
1.35
0.10
x
+
0.05
x
=
1.35
−
0.30
0.15
x
=
1.05
x
=
1.05
0.15
=
7
Notice that:
Now, we use the formula for the z-score:
Then the percentage of the calls that lasted less than 10 min is 15.87%
