Answer:
1- all three heads
2- 2 heads 1 tails
3- at least one head
Step-by-step explanation:
The Answer is 3
All you need to do is multiply 7 and 1 then divide.
Answer:
x = 8 + sqrt(3)/2 or x = 8 - sqrt(3)/2
Step-by-step explanation by completing the square:
Solve for x:
3 - 4 (x - 8)^2 = 0
Subtract 3 from both sides:
-4 (x - 8)^2 = -3
Divide both sides by -4:
(x - 8)^2 = 3/4
Take the square root of both sides:
x - 8 = sqrt(3)/2 or x - 8 = -sqrt(3)/2
Add 8 to both sides:
x = 8 + sqrt(3)/2 or x - 8 = -sqrt(3)/2
Add 8 to both sides:
Answer: x = 8 + sqrt(3)/2 or x = 8 - sqrt(3)/2
Answer:
Step-by-step explanation:
Assuming that for each option, you play the same number of games,x
Let y represent the cost of playing x games using option A
Option A is to buy a membership card and pay $2 every time you go to the gym. The membership card costs $20. It means that
y = 20 + 2x
Let z represent the cost of playing x games using option B
Option B is to pay $4 each time you go. It means that
z = 4x
To determine how many games will be played before cost of option A equal to the cost of option B, we would equate y to z. It becomes
20 + 2x = 4x
4x - 2x = 20
2x = 20
x = 20/2 = 10
It will take 10 games for both to be the same