Which describes the shape of the distribution of total points in Mr. Price's science class?

1 answer:

8 0

A bell curve describes a random distribution where at either end is a low amount with the middle representing a higher amount of points.

So at either ends are “extremes” were someone scored really low or really high. The middle presents the average where most people will score

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A ball is dropped from a height of 192 inches onto a level floor. After the third bounce it is still 3 inches off the ground. Pr

ANEK [815]

Answer: The required fraction = $\dfrac18$

Step-by-step explanation:

Let the required fraction = $\dfrac{p}{q}$

Given: Initial height = 192 inches

Height of ball after second bounce = $\dfrac{p}{q}\times192$

Height of ball after third bounce = $\dfrac{p}{q}\times\dfrac{p}{q}\times192=192\dfrac{p^2}{q^2}$

After the third bounce it is 3 inches off the ground.

So,

$(\dfrac{p}{q})^2192=3\\\\\\(\dfrac{p}{q})^2=\dfrac{3}{192}\\\\(\dfrac{p}{q})^2=\dfrac{1}{64}\\\\(\dfrac{p}{q})^2=(\dfrac{1}{8})^2\\\\ \dfrac{p}{q}=\dfrac{1}{8}$

Hence, The required fraction = $\dfrac18$

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3 years ago

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SpyIntel [72]

The answer should be 34

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3 years ago

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xeze [42]

Minusing 9 from the previous answer and then getting a new answer

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3 years ago

The answers to 4,5,6

Zolol [24]

4. x < 5; 9*5 = 45; The answer has to be less than 45; 45/9 =5; so x has to be less than 5.

5. n <= -3; -14*-3 = -42; The answert has to be greater than or equal to 42; 42/-14 = -3; so n has to be less than -3 or equal to -3.

6. x > 24; The answer has to be less than -6; 24/-4 = -6; so the answer has to be greater than 24.

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3 years ago

Clint is in study hall reading the hunger games after 20 minutes he is on page 151 after 45 minutes he's on page 181 how many pa

Mademuasel [1]

After 20 minutes Clint is on page = 151

After 45 minutes Clint is on page = 181

Time slot = $45-20=25$ minutes