You have to multiply on this one because example you go to the restaurant and eat so you pay but you have to put tips for the workers so its saying how much was total in all plus the tips
You move the decimal of 1.24 twice and also move the decimal of 11.25 twice because you have to do the same thing two both numbers.
Then now, youre dividing 1125 by 124 and that would equal 9.075
Mixed number is a natural number plus a proper fraction
a mixed number, is normally more than 1
anyway
percent means parstt out of 100
0.55%=0.55/100=0.055/10=0.0055/1=0.0055
it is 55/10000 as a fraction or 0 and 55/10000 aas a mixed number
decimal it is 0.0055
Let X be the number of boys in n selected births. Let p be the probability of getting baby boy on selected birth.
Here n=10. Also the male and female births are equally likely it means chance of baby boy or girl is 1/2
P(Boy) = P(girl) =0.5
p =0.5
From given information we have n =10 fixed number of trials, p is probability of success which is constant for each trial . And each trial is independent of each other.
So X follows Binomial distribution with n=10 and p=0.5
The probability function of Binomial distribution for k number of success, x=k is given as
P(X=k) = 
We have to find probability of getting 8 boys in n=10 births
P(X=8) = 
= 45 * 0.0039 * 0.25
P(X = 8) = 0.0438
The probability of getting exactly 8 boys in selected 10 births is 0.044
Answer:
angle d would be 63 degrees since angle B and A would form a same side interior angle, which adds to 180 so angle A has to be 117. angle D also forms a same side interior with angle A, so 180-117=63.