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Sav [38]
3 years ago
15

Consider the means of the samples shown in the table. Which value is least likely to be the mean of the population from which th

e samples were taken?
Sample Sample Mean
1 15.2
2 17.1
3 16.9
4 12.2
5 18.0
6 16.3
7 17.4

12.2
15.3
16.4
17.5
Mathematics
1 answer:
TiliK225 [7]3 years ago
5 0

Answer:

the answer is 12.2 :)

Step-by-step explanation:

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Find the sum or difference. Write your answer in simplest form. 2 1/3 + 1 3/4
hammer [34]

Answer:

The Sum is 49/12 (improper), or 4 1/12 (mixed).

The Difference of these 2 fractions would be 2 1/3 - 1 3/4 instead of adding them. The answer is 7/12.

Step-by-step explanation:

I did it by converting the mixed fractions into improper fractions, then making the denominators the same, and adding them together.

4 0
3 years ago
A sphere has a radius of 2x + 5. Which polynomial in standard form best describes the total surface area of the sphere? Use the
faust18 [17]
Start with the given formula for the surface area of a sphere.

S = 4 \pi r^2

Now substitute 2x + 5 in for r, the radius.
Then simplify the expression and write it in standard form.

S = 4 \pi (2x + 5)^2

S = 4 \pi (4x^2 + 20x + 25)

S = 16 \pi x^2 + 80 \pi x + 100 \pi
5 0
3 years ago
Twice the sum of two numbers is 72 if one number is 20 then the other number is
Alex787 [66]

Answer:

16

Step-by-step explanation:

20 + 16=36 36x2=72

6 0
3 years ago
Is this a function?<br> ignore the graph above the one with the dots lol
Evgen [1.6K]

Answer:

No.

Step-by-step explanation:

Use a vertical line test.

Vertical line test: If you can draw a vertical line and it <u>does not</u> cross two points in the line, then it is a function.

So, we draw a line.

Draw it through 9,0

It intercepts two points so No. This is not a function.

Hope this helps plz hit the crown :D

#Team Rainbows!

6 0
3 years ago
Factorise X Squared +13+12
Norma-Jean [14]

Answer:

\left(x+1\right)\left(x+12\right)

Step-by-step explanation:

x^2+13x+12

x^2+12x+1x+12

x(x+12)+1(x+12)

\left(x+1\right)\left(x+12\right)

7 0
3 years ago
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