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allsm [11]
3 years ago
6

What is the best estimate of the mean age of all the people in the tour group?

Mathematics
2 answers:
makvit [3.9K]3 years ago
8 0
This would be 30 because you have to add all the numbers you get from the problem so it would look like this ---> (19 +27 +25+21+44+22+45+34)8 = 29.625=30 (multiply the 8 with everything else just incase if you dont know how i got 29.625=30)
Hope this helps a lot :)
and a brainliest would help a lot
marissa [1.9K]3 years ago
7 0
Mean = (19 +27 +25+21+44+22+45+34)/8 = 29.625≈30 years

Answer is 30.
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Svet_ta [14]
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8 0
3 years ago
What is the slope of a line that is perpendicular to the line<br> v= -1/3x - 6
Amiraneli [1.4K]

Answer:

3

Step-by-step explanation:

the slope of a perpendicular line is the negative reciprocal of the original slope

a reciprocal is the inverse of a number, to find the reciprocal, just flip the numerator and denominator

in this cause, the slope is -1/3

the negative of it is 1/3 and the reciprocal is 3

therefore the slope of the perpendicular line is 3

6 0
3 years ago
A ball rolls over the edge of a platform with only a horizontal velocity. The height of the platform is 1.6 m and the horizontal
Sever21 [200]

Answer:

35 m/s

Step-by-step explanation:

Let gravitational acceleration g = 9.8m/s2. We can calculate the amount of time for the ball to fall vertically a distance of 1.6 m

1.6 = 9.8t^2/2

t^2 = 2*1.6/9.8 = 0.327

t = \sqrt{0.327} = 0.571s

This is also the time it takes for the ball to fly horizontally, assume constant horizontal speed, we can calculate the speed it takes to travel across 20m in 0.571s

v = 20 / 0.571 = 35 m/s

4 0
3 years ago
Help please help me with this. ​
boyakko [2]

\pi r^2h

\pi \times 7^2 \times 7

\pi \times 7^3

\displaystyle 343\pi

3 0
3 years ago
Read 2 more answers
11 12 13 Please help! Will reward brainliest
RoseWind [281]
11. 9/20
12. 13/20
13. 12/20

that's if it doesn't have to be in percentage form
3 0
3 years ago
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