Answer:
I’m doing it just a sec
Step-by-step explanation:
Answer:
The probability of taking $ 2.5 is 12.2%
Step-by-step explanation:
To make $ 2.5 with only 3 coins, you have to take out 2 $ 1 coins and a $ 0.5 coin in one of the following 3 ways:
(1) (1) (0.5) = (2.5) (i)
(1) (0.5) (1) = (2.5) (ii)
(0.5) (1) (1) = 2.5 (iii)
There are 3 coins (1)
There are 9 coins (0.5)
Therefore, the probability of drawing a coin from (1) on the first attempt is 3/12
The probability of drawing a coin of (0.5) on the first attempt is 9/12.
Then, the probability of drawing $ 2.5 from the form (i) is:
Finally:
P ($ 2.5) = P (i) U P (ii) U P (iii)
P ($ 2.5) = P (i) + P (ii) + P (iii)
P ($ 2.5) = 3P (i)
P ($ 2.5) = 3 * 0.0409
P ($ 2.5) = 12,227
The probability of taking $ 2.5 is 12.2%
Step-by-step explanation:
47-4x<7
-4x<7-47
-4x<-40
x>(40÷4)
x>10
Answer:
4
Step-by-step explanation:
Given
← evaluate the denominator
= ← perform the division
= 4
Assuming you mean y = 200 - 16t^2, we have all the required information needed to solve this problem. The y-value is the height of the building and the t-value represents the number of seconds after the shoe fell off.
Since we are trying to solve <em>for t</em>, we will be using our y-value. The problem states that we landed on a building with a height of 31 feet. We can plug this into the y-value, since that is what y is defined as (the height of the building).
Now we have:
31 = 200 - 16t^2
We can solve this to find t:
-169 = -16t^2
169 = 16t^2
10.5625 = t^2
3.25, -3.25 = t
We have found two answers for t. However, the negative value is not a solution because we can not have a negative number of seconds. Thus, 3.25 is the only value of t which works for this problem.
Since t is the value we are trying to find, we have our answer. The shoe hits the building after 3.25 seconds.