Amy and Alex are making models for their science project. Both the models are in the shape of a square pyramid. The
2 answers:
Answer:
The answer is 42.67 cubic inches.
Step-by-step explanation:
Both the models are in the shape of a square pyramid.
The length of the sides of the base for both the models is 8 inches.
Amy’s model is 5 inches tall and Alex’s model is 3 inches tall.
The volume is given by :
So, Amy's figure volume is :
= 106.67 cubic inches
And Alex's figure volume is:
= 64 cubic inches
So, the difference between volumes is = cubic inches.
The answer is 42.67 cubic inches.
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Answer:
14.)x=7
15.)x=252
16.)x=4
17.)x=3/4
18.) [in the picture]
Answer:
And in the figure attached we see the limits with the percentages associated.
Step-by-step explanation:
For this case we know that the random variable of interest is the scores on a test given to all juniors in a school district follows a normal distribution with the following parameters:
For this case we know from the empirical rule that within one deviation from the mean we have approximately 68.2% of the data, within 2 deviations from the mean we have 95% and within 3 deviation 99.7%
We can find the limits and we got:
And in the figure attached we see the limits with the percentages associated.
