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NeTakaya
3 years ago
15

(-3<(x+2)<7) help pls

Mathematics
1 answer:
vampirchik [111]3 years ago
4 0
3x - 2 = 7 
3x = 7 + 2 
3x = 9 (divide both sides by 3 to get x) 
3x/3 = 9/3 
x = 3 

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Help with this one? Please
netineya [11]

Answer:

x = 40

Step-by-step explanation:

The figure shows two similar triangles. Thus, the side lengths of similar triangles are proportional to each other. Therefore:

\frac{24}{24 - 15} = \frac{x}{x - 25}

\frac{24}{9} = \frac{x}{x - 25}

Cross multiply

24(x - 25) = 9(x)

24x - 600 = 9x

Subtract 24x from each side

- 600 = 9x - 24x

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3 0
3 years ago
Calculate the unshaded part ​
valina [46]

Answer:

4×3=12

answer=12

Step-by-step explanation:

2.5 is the diameter so you don't use that but

if you want the area it is 12

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4 0
3 years ago
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valentinak56 [21]

Answer:

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Step-by-step explanation:

3 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

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Required

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

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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>

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

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4 0
3 years ago
8
STatiana [176]

Answer:

(e^3 / e^2n)

Step-by-step explanation:

isn't this the same question

5 0
3 years ago
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