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timama [110]
3 years ago
14

What is the r value of the following data to three decimal places x y 4 23 5 12 8 10 9 9 13 2

Mathematics
1 answer:
kykrilka [37]3 years ago
3 0

Answer: -0.903

Step-by-step explanation:

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I had fell asleep but this for the nikkas det wanted to see what i look like <3
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Answer:

yes

Step-by-step explanation:

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3 years ago
Choose where it is a function or not a function also choose what is the range and the domain
kow [346]
Not a function because of the vertical line test.
Domain is [-2,∞] since the left most point is -2 and the right is unbounded.
Range is (-∞,∞) since it is not bounded in terms of y.
7 0
3 years ago
In his freshman year, Mario earned a C in algebra, a B in English, an A in science, and a C- in geography. As a sophomore, he ea
Leya [2.2K]

from what I know

A=4

B=3

C=2

and a plus adds 0.33 and a minus minuses 0.33

question wants us to find yearly average or average per 1 year

since these grades span over 2 years, we must divide the total average by 2

averagefresh=sum of fresh grades/4 grades per year

averagesoph=sum of soph grades/4 grades per year

yearlyaverage=(averagefresh+averagesoph)/2


freshman:

(C)+(B)+(A)+(C-)=2+3+4+(2-0.33)=10.67


sophomore:

(B+)+(A-)+(C+)+(B-)=(3+0.33)+(4-0.33)+(2+0.33)+(3-0.33)=12


averagefresh=10.67/4=2.6675

averagesoph=12/4=3

yearlyaverage=(2.6675+3)/2=2.83375

so it's about a B^{-} average

7 0
3 years ago
Which number is a composite number? 11 21 31 41
erastovalidia [21]

Answer:

21

Step-by-step explanation:

It is 21 since 21 = 3 * 7.

The other 3 numbers are prime.

4 0
3 years ago
Read 2 more answers
Simplify to create an equivalent expression.<br> 8(a+2)+2(2+3a)=
Alchen [17]

Answer:

14a + 20

Step-by-step explanation:

8(a + 2) + 2(2 + 3a)

expand the bracket

8a + (8*2) + (2*2) + (2*3a)

8a + 16 + 4 + 6a

bring like terms together

8a + 6a + 16 + 4

14a + 20

3 0
3 years ago
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