There are twelve of those:
1
2
3
4
5
6
7
8
9
10
11
and
12
When you flip a coin twice, you have a 50/50 chance of it land on heads or tails.
The possible combinations for fliping a coin twice:
HH (heads/heads both times)
T/H(Tails/Heads)
H/T(Heads/Tails)
or the one you're looking for...
T/T (Tails/Tails both times)
You have a 1/4 chance of getting tails both times.
Hotel
He stayed 3 nights, so $115.62 × 3 = $346.86
Airfare
$45.70 + $32.49 = $78.19
Food
He averaged $15 a day, and he stayed 4 days.
$15 × 4 = $60
Winnings
He won $75 but lost $25
$75 - $25 = $50 won.
Adding up all the expenses and winnings, we find that he paid $435.05 for his trip.
Answer:
Step-by-step explanation:
A) Using the foil method and distribution, you should get x²+10x+7x+70 from (X×X)+(X×10)+(X×7)+(7×10). When you combine these like terms, you get x²+17x+70.
B) Using the same ideology from part A, when you multiply x-3 into x-9. you should get x²-9x-3x+27. Simplifying this will give you x²-12x+27.
Answer:
1.5
1.5
Step-by-step explanation:
The steps are in the image above
