One of my students got 95, 98, and 32 for the two Principal tests and for the final test. a What is the average of her three tes
2 answers:
Answer:
Her average is 75
Step-by-step explanation:
To be able to find the average of a group of numbers you must add them all then divide them by how many numbers that there are.
Step 1: Add all the values
Step 2: Divide
Step 3: Check your work
Step 4: Celebrate
You got the correct answer, now be proud of yourself.
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Answer:
A.
Step-by-step explanation:
We want to find the Z-score of if the population mean is
,and the population standard deviation is
.
We use the formula:
We substitute the values to obtain:
The correct answer is A.
Answer:
Step-by-step explanation:
A rectangular prism is a three-dimensional solid.
A rectangular prism has six faces (each one of these faces are rectangles), eight vertices and twelve edges.
You know that this rectangular prism has 5 layers and the volume of one of these layers is 18 cubic centimeters ().
Assuming that all these layers are equal, the volume of this rectangular prism can be calculated with:
Where is the volume of one layer.
Substituting, you get: