Answer: 2/3 + 1/4 = 11/12
The least common denominator of both denominators is 12.
The first fraction , 3 x 4 = 12
2 2x4 8
— = —— = —
3 3x4 12
The second is the same , 4 x 3 = 12
1 1x3 3
— = —— = —
4 4x3 12
Add both fractions:
8 3 8 + 3 11
— + — = ——— = —
12 12 12 12
Answer:
The probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.
Step-by-step explanation:
Denote the events as follows:
<em>X</em> = an elementary or secondary school teacher from a city is a female
<em>Y</em> = an elementary or secondary school teacher holds a second job
The information provided is:
P (X) = 0.66
P (Y) = 0.46
P (X ∩ Y) = 0.22
The addition rule of probability is:

Use this formula to compute the probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job as follows:

Thus, the probability that an elementary or secondary school teacher selected at random from this city is a female or holds a second job is 0.90.
8675 ÷ .5= 17350
You could also multiply by 2 to check your answer
17350 * .5= 8675
You could also divide by 2.
Siny/2.7=sin63/2.8
siny=2.7sin63/2.8
y=arcsin((2.7sin63)/2.8)
y≈59.23° (to nearest one-hundredth of a degree)