im sorry but i thunk i for got thus
65:x = 13:15
Divide 65 by 13.
65/13=5
Multiply 15 by 5 for the proportionate factor.
75.
There are 75 girls in the classroom.
We're looking for the total so we need to add 65 with 75.
65+75= 140.
There are 140 total students.
We are given :
Length = 4 + x
Width = x
Height = x² + 1
Multiplying length , width and height,
Using foil method,
So the highest power is 4 here.
Answer : The polynomial that represents the volume of Box 3 has a degree of 4.
Answer:
$8,440
Step-by-step explanation:
5.5% of 8,00 = 440
8,000 + 440 = 8,440
Answer:
0.8413 or 84.13%
Step-by-step explanation:
Given : The mean is 72 inches and the standard deviation is 15 inches
To Find : What is the probability that in a randomly selected year, the snowfall was less than 87 inches
Solution:
Mean =
Standard deviation =
Formula :
We are supposed to find the probability that in a randomly selected year, the snowfall was less than 87 inches
So, x = 87
Substitute the values in the formula
Now to find P(z<87) refer the z table
P(Z<87)=0.8413 = 84.13%
So, the probability that in a randomly selected year, the snowfall was less than 87 inches if the mean is 72 inches and the standard deviation is 15 inches is 0.8413 or 84.13%