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Volgvan
3 years ago
15

13 points ill also mark brainliest if correct

Mathematics
2 answers:
Yuri [45]3 years ago
5 0

Answer:

Answer is A

Step-by-step explanation:

Reasons

Vesna [10]3 years ago
5 0

Answer:

DE is congruent to GF

Step-by-step explanation:

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Five students wrote a mathematics test. The average mark was 68. If the marks for four of the students were 75, 62, 84 and 53, t
konstantin123 [22]

Answer:

66

Step-by-step explanation:

Use the formula for the mean of a set of numbers:

                  sum of the numbers

average = --------------------------------

                     count of numbers

Here we know that the average mark was 68, so we can write:

               

                           75 + 62 + 84 + 53 + x

average = 68 = ----------------------------------

                                           5

or                            274 + x

                  68 = -------------------

                                    5

Solving for x, we multiply both sides by 5:     340 = 274 + x.

Subtracting 274 from both sides effectively isolates x:

 340 = 274 + x

- 274    -274

------------------------

  66      =    x

The fifth student's mark was 66.

4 0
3 years ago
Find the mean of the data<br><br><br><br> The mean is ___visits to your website.
lorasvet [3.4K]
To find the mean you first add all the numbers up you get each day
12+16+0+8+31+28+17=112
Than you divided it by how many days there are...
112/7=16
So the mean is 16
3 0
3 years ago
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Whats the difference between domain and range?​
ella [17]

Answer:

In its simplest form the domain is all the values that go into a function, and the range is all the values that come out.

Step-by-step explanation:

4 0
3 years ago
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HELP ME PLEASEEEEEEEEEEEEE
zepelin [54]

Answer:

d

Step-by-step explanation:

Brₐinliest plz close to leveling up

3 0
2 years ago
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PLEASE HELP! I’M SO CONFUSED!!
romanna [79]

Answer:

The answer is 7.

Step-by-step explanation:

4 divided  by 7 is 0.571428 these just keep repeating over and over again so the closest dividable number of 6 (6 is how many digits there are before it repeats) is 1998 so the 2nd digit in .571428 is 7 hope this helps.

8 0
3 years ago
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