The ratio of the volumes of two similar solid polyhedra is equal to the square of the ratio between their edges. True or False?
2 answers:
Answer:
The given statement is false.
Step-by-step explanation:
The ratio of the volumes of two similar solid polyhedra is equal to the square of the ratio between their edges.
This statement is false.
A polyhedron is a shape that has no gaps between their edges or vertices. Like - a cube, prism, or pyramid.
Take in consideration, the cube.
Volume of cubes is given by = =
A similar cube will be the one with same dimensions. So, in no way, their volume can be equal to the square of the ratio between their edges.
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Answer:
The most appropriate value of the critical value is 2.289.
Step-by-step explanation:
We are given that a researcher takes a random sample of 41 bulbs and determines that the mean consumption is 1.3 watts per hour with a standard deviation of 0.7.
We have to find that when constructing a 97% confidence interval, which would be the most appropriate value of the critical value.
Firstly, as we know that the test statistics that would be used here is t-test statistics because we don't know about the population standard deviation.
So, for finding the critical value we will look for t table at (41 - 1 = 40) degrees of freedom at the level of significance will be .
Now, as we can see that in the t table the critical values for P = 1.5% are not given, so we will interpolate between P = 2.5% and P = 1%, i.e;
So, the critical value at a 1.5% significance level is 2.289.
2 and 1/2 years = 30 months
The answer is A. $150
Hope this helps.
The answer is A. $150
Hope this helps.