Answer:
12000
Step-by-step explanation:
Answer: the standard deviation is 2.4
Step-by-step explanation:
The formula for standard deviation is expressed as
s = √npq
Where
p = probability of success
q = probability of failure
n = number of samples
From the information given,
The probability of success, p is given as 0.2. It means that the probability of failure, q will be 1 - p = 1 - 0.2 = 0.8
There were 35 attempts. This means that total number of samples, n is 35
The standard deviation becomes
√35×0.2×0.8 = √5.6 = 2.366
Approximately 2.4
The last number line the correct answer!
-2a-5>3
-2a>8
a<-4
( the sign is flipped in the end because when you multiply or divide by a negative number, the sign flips the other way around)
7/20+3/9
7/20+1/3
21/60+20/60=41/60
Answer:
He can make <u>3 birdhouses</u> if he has 12 feet of wood.
Step-by-step explanation:
Given:
Henry uses 3 feet of wood to make 3/4 of a birdhouse.
If he has 12 feet of wood.
Now, to find the birdhouses he can make.
So, to get the number of birdhouses we use unitary method:
Henry uses 3 feet of wood to make of a birdhouse.
So, in 1 feet of wood to make = =
Thus, in 12 feet of wood = =
Therefore, he can make 3 birdhouses if he has 12 feet of wood.