Question is Incomplete, Complete question is given below.
Mr. Jablonski's class is making fudge for a bake sale. Mr. Jablonski
has a recipe that makes 3/4 pound of fudge. There are 21 students in
the class. Each student uses the recipe to make one batch of fudge.
How many pounds of fudge do the students make?
Answer:
student made 
of fudge.
Step-by-step explanation:
Given:
Mr. Jablonski recipe makes 3/4 pound of fudge.
Number of student in class = 21 students.
Each student uses the recipe to make one batch of fudge.
Hence to calculate Total amount of fudge student made we will multiply the amount of fudge used in recipe with Number of students.
Total amount of fudge student made = amount of fudge used in recipe × Number of students.
Total amount of fudge student made = 
Hence the student made of fudge.
Answer:
1/2
Step-by-step explanation:
We can use the slope formula to find the slope
m = ( y2-y1)/(x2-x1)
We have two points on the line
(-1,3) and ( 1,4)
m = ( 4-3)/(1 - -1)
= (4-3)/(1+1)
= 1/2
Answer:
4.5126 approximately 4.5
Step-by-step explanation:
First of all, we need to identify the type of data that we are receiving, in this case we got a finite amount of data, a discrete set of data, 11 of them to be precise, so the first parameter: the size of the sample (N) is equal to 11.
So, for this problem we goin' to use the formula for standard deviation for discrete variables that it's given by: see the attached image
where σ correspond to the standard deviation, μ correspond to the mean (in this case μ = 70 decibels) , xi correspond to each of the data values and i correspond to a counter beginning in i=1 with x1 = 68 and ending in i=N=11 (the size of the sample) with x11=68.
Finally we operate using the formula and we obtain that the standard deviation of this sample is equal to 4.5126
