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GrogVix [38]
3 years ago
11

In a roller-skating rink, the skaters all move at different speeds. Most skate slightly faster or slower than others, but someti

mes an adventuresome skater accelerates to an "outlying" speed that is much higher than that of everyone else, causing a hazard. As a result, skating rinks often post a sign that says:
Any skater moving faster than the average speed of all the skaters will be asked to leave the rink.

It is clear what the sign means, but it is statistically nonsensical. If there are 150 skaters in the rink, all skating at slightly varying speeds, what is the best estimate for how many of them are moving faster than the average speed of all the skaters?
A. 100
B. 0
C. 25
D. 75
E. 50
Mathematics
1 answer:
Stella [2.4K]3 years ago
4 0
I think the answer is c. 25

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Slope and the intercept
Pie

Answer:

y-intercept: (0, 3) slope: 3

Step-by-step explanation:

7 0
3 years ago
The angle between the ground at the top of a flag pole is 25o when the observer is at point A. The observer walks 10 m directly
gladu [14]

Answer:

12.4967 m

≈  12.5 m

Step-by-step explanation:

From the solution diagram attached, to find /AB/, we apply sine rule:

AB/Sin 140° =AD/Sin 15°

AB = 10/Sin 15° x Sin 140°

     = 24.8372 m

To calculate the height of the pole we will calculate BC first. Using the right angle triangle ∠ABC, we have:

Sin ∅  =  BC/AB

Sin 25° =   BC/ 24.8372

BC = 24.8372 Sin 25°

    =  10.4967 m

The height of the pole =  BC + 2.0

                                      =  10.4967 + 2.0

                                      = 12.4967

                                     ≈  12.5 m

5 0
3 years ago
The directions say...Use dimensional analysis to convert the measurements.
Usimov [2.4K]
725.18 would be the answer
4 0
3 years ago
Read 2 more answers
0 raised to any power is 0( true or false)
ioda
False. 0^0 is one. Any number raised to the zero is 1.
4 0
3 years ago
Read 2 more answers
Round to the nearest whole %
Otrada [13]

The relative frequency for middle school students whose favourite sport is baseball is 27%.

The relative frequency for middle school students whose favorite sport is basketball is 31%.

The relative frequency for middle school students whose favorite sport is football is 42%.

The relative frequency for high school students whose favorite sport is baseball is 44%.

The relative frequency for high school students whose favorite sport is basketball is 31%

The relative frequency for high school students whose favorite sport is football is 25%

<h3>What is relative frequency?</h3>

Relative frequency measures how often a value appears relative to the sum of the total values.

The relative frequency for middle school students whose favourite sport is baseball = 13/48 = 27%

The relative frequency for middle school students whose favorite sport is basketball = 15 / 48 = 31%

The relative frequency for middle school students whose favorite sport is football = 20 / 48 = 42%

The relative frequency for high school students whose favorite sport is baseball = 23 / 52 = 44%

The relative frequency for high school students whose favorite sport is basketball = 16 / 52 = 31%

The relative frequency for high school students whose favorite sport is football = 13 / 52 = 25%

To learn more about relative frequency, please check: brainly.com/question/14610326

5 0
2 years ago
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