The undefined term that can contain parallel lines are line.
138° + w° = 180° (sum of angle on a straight line)
w° = 180° - 138°
w = 42
19° + x° + w° = 90°
sub. in w=42,
19° + x° + 42° = 90°
x° = 90° - 19° - 42°
x° = 29°
x = 29
The probability density function (pdf) is;
f(x)= for a ≤ x ≤ b.
while the mean is given as
And the standard deviation given as
Answer:
the answer is $65
Step-by-step explanation: