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3 years ago

What’s the compound inequality for this??

Mathematics

1 answer:

MariettaO [177]3 years ago

3 0

Answer:

-2 < x<4

Step-by-step explanation:

We have open circles and -2 and 4 so we don't include those numbers

The line is in between so the x is in between

-2 < x<4

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Is y=1/2x-9proportional

Verizon [17]

It’ equals h=/y8x ok that is simple

6 0

3 years ago

Read 2 more answers

A bag contains red marbles, white marbles, and blue marbles. Randomly choose two marbles, one at a time, and without replacement

dsp73

Answer:

$P(First\ White\ and\ Second\ Blue) = \frac{3}{28}$

$P(Same) = \frac{67}{210}$

Step-by-step explanation:

Given (Omitted from the question)

$Red = 7$

$White = 9$

$Blue = 5$

Solving (a): $P(First\ White\ and\ Second\ Blue)$

This is calculated using:

$P(First\ White\ and\ Second\ Blue) = P(White) * P(Blue)$

$P(First\ White\ and\ Second\ Blue) = \frac{n(White)}{Total} * \frac{n(Blue)}{Total - 1}$

<em>We used Total - 1 because it is a probability without replacement</em>

So, we have:

$P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{21 - 1}$

$P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{20}$

$P(First\ White\ and\ Second\ Blue) = \frac{9*5}{21*20}$

$P(First\ White\ and\ Second\ Blue) = \frac{45}{420}$

$P(First\ White\ and\ Second\ Blue) = \frac{3}{28}$

Solving (b) $P(Same)$

This is calculated as:

$P(Same) = P(First\ Blue\ and Second\ Blue)\$ $or\ P(First\ Red\ and Second\ Red)\ or\ P(First\ White\ and Second\ White)$

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

$P(Same) = (\frac{5}{21} * \frac{4}{20})+(\frac{7}{21} * \frac{6}{20})+(\frac{9}{21} * \frac{8}{20})$

$P(Same) = \frac{20}{420}+\frac{42}{420} +\frac{72}{420}$

$P(Same) = \frac{20+42+72}{420}$

$P(Same) = \frac{134}{420}$

$P(Same) = \frac{67}{210}$

6 0

3 years ago

6-x-x=18 I'm not sure how to solve this problem I keep getting -9 but I'm not sure

timama [110]

6 - x - x = 18

6 - 2x = 18

-2x = 12

-2x/-2 = 12/-2

x = -6

hope this helps

5 0

3 years ago

Factor

notka56 [123]

Answer:

the answer is C.(4x-3)(5x+1)

Step-by-step explanation:

7 0

3 years ago

The pet shop has cats, puppies, and lizards up for adoption. 17% are lizards, 33% are cats, what percent are puppies? Show me yo

timurjin [86]

There are 50% puppies in the pet shop.

Step-by-step explanation:

Let,

Total percent of puppies, cats and lizards is 100%.

Percent of puppies = x

Given,

Percent of Cats = 33%

Percent of Lizards = 17%

As all the values are in percent, therefore, we can add and subtract them.

Total percent = Percent of cats + Percent of lizards + Percent of puppies

$100=33+17+x\\100=50+x\\100-50=x\\50=x\\x=50$

There are 50% puppies in the pet shop.

Keywords: addition, subtraction

Learn more about addition at:

#LearnwithBrainly

3 0

3 years ago