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3 years ago

The student body at a high school was surveyed about sports participation. The table below shows

Mathematics

1 answer:

poizon [28]3 years ago

4 0

Okay, according to the graph, there are 55 9th graders under the column

"NO SPORTS"

and there are 612 total people in the school

55 / 612 = the percentage of the student body who is in 9th grade and doesn't play a sport

55 / 612 = 0.0898

8.9% but we need to round

the answer is : about 9% of the students body

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3 years ago

Consider a particle moving around a circle with a radius of 38cm. It rotates from 10 degrees to 100 degrees in 11 seconds. Calcu

kifflom [539]

Step-by-step explanation:

Given that,

Radius of circle, r = 38 cm = 0.38 m

It rotates form 10 degrees to 100 degrees in 11 seconds i.e.

$\theta_i=10^{\circ}=0.174\ rad$

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Let $\omega$ is the angular velocity of the particle such that, $\omega=\dfrac{\omega_f-\omega_i}{t}$

$\omega=\dfrac{1.74-0.174}{11}$

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$v=r\times \omega$

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v = 0.053 m/s

So, the instantaneous velocity of the particle is 0.053 m/s. Hence, this is the required solution.

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3 years ago

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igomit [66]

a. $150

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lozanna [386]

See the attached image for solution:

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3 years ago

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