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zaharov [31]
3 years ago
9

Quick quick need answer please thank you

Mathematics
1 answer:
tangare [24]3 years ago
3 0

Answer:

a) at 6km an hour b) ten minutes

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consider a job that pays $100,000 per year federal income taxes 19% and state income tax is 7% what is the annual total of the r
tester [92]
First multiply 100,000 and 19% equaling 19,000

Then multiply 100,00 and 7% equaling 7,000

Lastly add 7,000 and 19,00 together to get your answer

Answer: 26,000
3 0
4 years ago
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Consider two populations of coins, one of the pennies and one of quarters. A random sample of 25 pennies was selected, and the m
Rudik [331]

Answer:

d. No, the conditions for normality have not been met because the sample size for the pennies is not large enough and no information is given about the distributions of the populations.

Step-by-step explanation:

In this example, we learn that the sample taken of pennies was of 25, while the sample of quarters was of 35. According to the central limit theorem, a sample must be equal to or larger than 30 for the theorem to hold. The theorem states that when random variables are added, they tend towards a normal distribution even if the original variables themselves are not normally distributed. In this question, the sample of pennies is not large enough for the theorem to hold. On top of this, we have no information about the distribution of the populations. Therefore, the conditions for normality have not been met.

6 0
4 years ago
I’m in need of serious help I don’t know how to do this
Illusion [34]

Answer:

Line A, (horizontal slope), Line B, (Negative slope) Line C, (Vertical slope) Line D, (Undefined slope)

Step-by-step explanation:

3 0
3 years ago
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Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these
Klio2033 [76]
Answer: There are 495 possible different sets of answers the could contain exactly 8 correct answers of false.

Basically, we are looking for the number of different ways of selecting 8 objects out of a set of 12 objects. Our objects are answers of false and the set is the test.

This is a combination problem. The formula would be:

12! / (8! x 4!) = 495
8 0
3 years ago
For the graph y = 1 find the slope of a line that is perpendicular to it and the slope of a line parallel to it. Explain your an
svetlana [45]
<span>For the graph y = 1, the slope of a line that is perpendicular would be infinity because it lies vertically. The slope of the line parallel to it will have the same slope with y=1 which is zero because it lies flat or horizontally. Hope this answers the question. Have a nice day.</span>
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3 years ago
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