The answer is 50
.............
Answer:
Length = 7.05m
Step-by-step explanation:
Breadth is just a fancy word for width. We know that the width is 2.6 m and the total area is 18.33 m². We also know that the formula for the area of a rectangle is l*w, length times width. Remember, we are looking for l.
Set up an equation: l*w=A
Where:
- l = Length
- w = Width
- A = Area
Plug in the known values.
l*w=A
l * 2.6 = 18.33
Solve for l. Isolate the variable by dividing both sides of the equation by 2.6:
l = 7.05
You can easily check your work by finding l*w now that you know both values. Always remember to put the unit back into your answer! So your final answer should be l=7.05 m
Answer:
$18.42
Step-by-step explanation:
6 folders-7.74
7 pens-6.93
5 packs of pencils- 3.75
Answer:
The mean exam scores in the second section is greater than the mean exam scores in the first section
Step-by-step explanation:
Here, we are interested in making a conclusion.
Mathematically;
z-score = (score - mean)/SD
so basically, what determines the sign of the z-score is dependent entirely on the mean.
If the mean is larger than the score, we will have a negative z-score. If the mean is smaller than the score, then will have a positive z-score
So basically what drives the sign is the mean value since the scores are the same for both students in this case, irrespective of the standard deviation in both classes.
So, for the first girl with a positive z-score, we can conclude that her score is larger than the mean; while for the second girl with a negative z-score, her score is smaller to the mean.
Thus, what we conclude here is that the mean score of the second section with the professor is greater than the mean score of the first section with the professor.
Answer:
The answer is 2975 but the estimate is 3000.
Step-by-step explanation:
