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schepotkina [342]
3 years ago
11

PLEASE HELP ME 20 PTS

Mathematics
2 answers:
Sunny_sXe [5.5K]3 years ago
7 0

Answer:

A.

Step-by-step explanation:

edge2021, got a 100 on pre-test

podryga [215]3 years ago
6 0

Answer:

The answer is C

Sn=3(1-1/2^n)

Step-by-step explanation:

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I can write numerical expressions involving whole-number exponents
DerKrebs [107]

Answer:

yes

Step-by-step explanation:

nothing much u have to do like what ur teacher said

7 0
3 years ago
Determine the mean of the data. Round to the nearest tenth. 6, 9, 15, 22, 30, 36
pshichka [43]
To find the mean you add all the numbers and divide it by the amount of numbers there is so add
6+9+15+22+30+36=118 
there is 6 number so divide 118 by 6
118/6=<span>19.6666666667 rounded to the nearest tenth it would be 20
So your mean would be 20 
let me know if you have any questions</span>
3 0
3 years ago
In a recent test, you scored 1.0 standard deviations above the average score attained, and the scores are normally distributed.
sesenic [268]

Answer:

97.75 %

Step-by-step explanation:

You score 1 standard deviation above the mean

a) we have from left tail up to the mean 50 % of all values

b) We have in the interval  [ μ  -  σ  ;  μ  +  σ ] 95.5 % of all possible values, if we divide that 95.5 by 2 we get 47.75 %,  the part of the values that correspond to the right, then in order to get the  % of students scored lower we add

50  +  47.75   = 97.75 %

So you can say that the porcentage of students that scored lower than you is 97.75 %

3 0
3 years ago
Help me also with #8 !!!
iVinArrow [24]

Answer:216 is your answer

Step-by-step explanation:

4 0
3 years ago
If the units digit of the three-digit positive integer k is nonzero, what is the tens digit of k ?
Vanyuwa [196]

Answer:

  any digit 0 to 9

Step-by-step explanation:

Nothing about your description of the number suggests that the 10s digit depends on the units digit. The tens digit can be any digit 0 to 9.

8 0
2 years ago
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