Consider this option (2 ways for this):
1. Probability=1-[probability_all_boys].
for [probability_all_boys]=1/[all_possible_combinations];
for [all_combinations]=2³=8. It means that
Probability=1-(1/8)=7/8=0.875.
2. Probability=[needed_cases]\[all_possible_cases];
all possible combinations are:
bbb;ggg;bgg;bgb;bbg;gbg;gbb;ggb; - (where 'g' - girl, 'b' - boy) total 8.
needed cases: ggg;bgg;bgb;bbg;gbg;gbb;ggb, - total 7.
Probability=7/8=0.875
Answer:
A. Whole numbers less than or equal to 100
Step-by-step explanation:
The domain is the set of x numbers that can be plugged in to a certain equation.
Since the capacity of this movie theater is 100, x can be between 0 and 100, inclusive.
Answer choice A makes sense because whole numbers are definitionally positive integers and this choice caps out at 100.
Take the percentage and times it by the the price and you will get 30% OF the amount and all you have to do is subtract the 30% from your original price and you will get your answer which is $17.5
Are there any answer choices for the question?
Divide through by 5
5/5 x^2 + 13/5 x - 6/5 = 0/5
Which gives
X^2 + 13/5 x - 6/5 = 0
Move constant to right
X^2 + 13/5 x = 6/5
Take half of x term and square it
(13/5 * 1/2)^2 = 169/100
Add to both sides
X^2 + 13/5 x+ 169/100 = 6/5 +169/100
(X +13/10)^2 = 289/100
Root both sides
X + 13/10 = +- root(289/100)
Simplify
X + 13/10 = +- 17/10
X= -13/10 +- 17/10
Therefore
X = -13/10 +17/10
Or
X = -13/10 - 17/10
Which becomes
X=0.4 and x=-3
Hope this helps
