Answer:
Step-by-step explanation:
A) From the stem-leaf plot, we see that out of 21 tunas, 5 have dangerous levels of copper since the levels go beyond 5.7 parts per million. The required proportion is 5/21=0.2381
B) Given the sample mean is {x}=4.77, sample standard deviation s=1.16 and the sample size is n=21.
Since the population standard deviation is not known, we use t-distribution.
So the 98% CI for mean is
4.77 ± t{1-0.02 /2,20} x 1.16/sqrt(21) = (4.13, 5.41)}
We are sure with 98% confidence the true copper level (in parts per million) lies in the interval (4.13, 5.41)
Answer:
The volume of the container is = 8138.88 cubic centimeters
Radius of the cone = 4 cm
Height of the cone = 9 cm
Volume of the cone =
So putting the values as pi=3.14 , r=4 and h=9 we get
= 150.72 cubic cm
So, the number of times the cone can be filled is =
The number of times is = 54.
Step-by-step explanation:
54 is your answer
In fraction
b= 29/8
decimal
b= 3.625
another’s fraction
b= 3 5/8
Answer:
Yes both of the circles show the same amount.
Step-by-step explanation:
You start of by looking at both of the circles. Each circle shows the same fraction which is 1/3, which means both of them have the same value or amount. Both circles have the same amount of total parts, and have the same amount of parts shaded in. Sorry that was long but yeah both of the circles show the same amount.
Answer:
Step-by-step explanation:
I'm going to start with #2, since your drawing makes the explanation a bit difficult otherwise. Line the that intersects the 2 planes is names by the 2 points that are on the line. Just for clarification, the line is the long extension with the 2 arrows, 1 at each end. The 2 points that lie on that line are the intersection of the 2 planes. So #2 is line XZ which is choice D. Now onto #1.
The points to the left of that line are the points on plane M and the points to the right of the line are the points on plane N. #1 asks us to name the points on plane M, which are X, Y, and Z; choice C.
For #3, we have to know what each of those postulates is. Upon investigation of the actual definition, the one that we want is A that says "If 2 points are contained in a plane, then the line through them is contained in the same plane."
