Answer:
Step-by-step explanation:
The formula for the area of a sector is
where theta is the angle given as 45 and r is the radius (7). Plugging in we get
Simplify a bit to get
which gives you, in terms of pi:
or if you need to use the decimal form, rounded to the hundredths position:
A = 19.24
b. P(A|B) = y
c. P(B|A) = x
d. P(A and B) = x + y
e. P(A and B) = x/y
P(A)
If two events are independent, then
.
Use formulas for conditional probabilities:
.
For independent events these formulas will be:
.
Now in your case and .
This shows that the only correct choice is A.
B. 9.0
C. 4.2
D. 1.4