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BabaBlast [244]
3 years ago
8

Mr.Epstein placed two-stools in front of the classroom. One had three-legs and the other had four legs. He asked Charlene to sit

on each of them. She noticed that the four-legged stol rocked when she sat on it, but the three-legged stool was steady and did not rock. Make a conjecture about why this might have occurred.

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
4 0

Answer:

The three legged stool was a round stool with the legs placed evenly around it. But the legs on the four legged stool were uneven.

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SIMPLIFYING ALGEBRAIC EXPRESSIONS<br><br> -8(9x+7r) use r = -5 and x = 8
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-296

Step-by-step explanation:

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4 years ago
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Brainliest for correct answer, asap please.
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Not a function

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Function

Step-by-step explanation:

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8 0
3 years ago
If is added to a number and the sum is 8 multiplied by 2, the answer is What is the number? 3​
Anit [1.1K]

Answer:

Let the number be x

Given that

⇒(x+

3

2

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3

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⇒x+

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8

⇒x=

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−

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5 0
3 years ago
A box contains 5 red balls, 6 white balls and 9 black balls. Two balls are drawn at
valina [46]

Answer:

P(Same)=\frac{61}{190}

Step-by-step explanation:

Given

Red = 5

White = 6

Black = 9

Required

The probability of selecting 2 same colors when the first is not replaced

The total number of ball is:

Total = 5 + 6 + 9

Total = 20

This is calculated as:

P(Same)=P(Red\ and\ Red) + P(White\ and\ White) + P(Black\ and\ Black)

So, we have:

P(Same)=\frac{n(Red)}{Total} * \frac{n(Red) - 1}{Total - 1} + \frac{n(White)}{Total} * \frac{n(White) - 1}{Total - 1}  + \frac{n(Black)}{Total} * \frac{n(Black) - 1}{Total - 1}

<em>Note that: 1 is subtracted because it is a probability without replacement</em>

P(Same)=\frac{5}{20} * \frac{5 - 1}{20- 1} + \frac{6}{20} * \frac{6 - 1}{20- 1}  + \frac{9}{20} * \frac{9- 1}{20- 1}

P(Same)=\frac{5}{20} * \frac{4}{19} + \frac{6}{20} * \frac{5}{19}  + \frac{9}{20} * \frac{8}{19}

P(Same)=\frac{20}{380} + \frac{30}{380}  + \frac{72}{380}

P(Same)=\frac{20+30+72}{380}

P(Same)=\frac{122}{380}

P(Same)=\frac{61}{190}

4 0
3 years ago
Use the slope formula to find the slope of the line that passes through the two given points. State whether the line is​ increas
Serhud [2]

The slope is -1/6.

Using the slope formula m = (y₂-y₁)/(x₂-x₁),

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Because the slope is negative, the line is decreasing.

3 0
3 years ago
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