Answer:
Step-by-step explanation:
A=2(10)12+2(10)9+9(12)
A=240+180+108
A=528 in^2
The answer is definitely 24 inches
Try this solution:
note, that sin(pi/2+x)**=cosx, it means sin(x+pi/2)= -4/5.
ps/ ** may be used the formula sin(a+b)=sinacosb+sinbcosa.
The
formula for the population proportion is:
n = p ± Zc
where p =
confidence level = 0.2
n =
proportion = 0.22
= standard error = 0.01
Finding for Zc:
.20+(.01)=.22
Zc = 2
Referring to Critical value table for standard
normal curve, a Zc value of 2 is equivalent to 95% Confidence Level.
Answer: 95% Confidence Level
1) the probability of drawing a white marble is 1 out of 9. purple is 8out of 9
2) the probability of drawing two white marbles is 2out of 9
3) two purple because every time you draw if you put it back in the probability doesn't change