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olganol [36]
4 years ago
6

How many subsets of at least four elements does a set of seven elements have?

Mathematics
1 answer:
garik1379 [7]4 years ago
5 0
1234567

1234
2345
3456
4567
5671
6712
7123
12345
23456
34567
45671
56712
67123
71234
123456
234567
345671
456712
567123
671234
712345
1234567

22 subsets.
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Find a 95% confidence interval for the mean auditory response time for subjects with a visual response time of 200 ms. The 95% c
Sveta_85 [38]

Answer:

hello your question is incomplete attached below is the complete question

answer : ( 184.019 , 206.219 )

Step-by-step explanation:

The 95% confidence interval for the mean auditory response time for subjects with a visual response time of 200 ms can be calculated using this relationship below

y = Bo + B1 ( 200 )  = 195.118621 , sy =

hence a 95% confidence interval = 195.118621 ± 2.306( 4.813492) i.e.  ( 184.019 , 206.219 )

attached below is the remaining part the solution

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3 years ago
Help me please!!! very urgent!
Simora [160]

Step-by-step explanation:

The perpendicular line has a slope that is the negative reciprocal of the other line's slope. So, in this case, the slope should be 1/3 (it's positive because a negative times a negative is a positive). This gets rid of all of the answers except for the last, I suppose.

6 0
3 years ago
Johnny has four pencils Mikey has four times as many pencils girl has two pencils how many pencils do they have total
k0ka [10]
The answer would of been either 10 or 32
4 0
3 years ago
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26 out of 48 books are small. What percentage of the books are small?
Paraphin [41]

Answer:

54.16%

Step-by-step explanation:

The percentage of books that are some is 54.16 %

In order to find that answer you would have to calculate the total number of small books (26) over the total number of all of the books (48).

The equation would be 26/48=0.5416 however Multiply that answer by 100 and you would get 54.16% and if you want to round to the nearest whole number it would just be 54%

5 0
3 years ago
A line passes through the points (p, a) and (p, –a) where p and a are real numbers and p ≠ 0. Describe each of the following. Ex
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<span> line passes through the points (p, a) and (p, –a)
where p and a are real numbers and p ≠ 0
(p, a) and (p, –a) m = Cannot divide by ZERO, there is no slope to this Line.
slope of the line: no slope (does not exist)
equation of the line: x = p Perpendicular Line
</span><span>slope of a line perpendicular to the given line: would be m = 0, horizontal Line y= 3
</span>y- intercept: none
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3 years ago
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