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3 years ago

10

Need help with 8-10 didn’t understand this

2 answers:

Zina [86]3 years ago

8 0

Answer:

8 is -5

9 is (-2,3)

10 is -10

castortr0y [4]3 years ago

7 0

Answer:

8. F) -5
9. D) (-2,3)
10. J) -10

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In Tim's garden, the flowers are only red, white, yellow and blue

Damm [24]

Are you looking for probability?

4 0

2 years ago

Read 2 more answers

g An urn contains 10 balls: 4 red and 6 blue. A second urn contains 16 red balls and an unknown number of blue balls. A single b

Fed [463]

Answer:

Therefore the of blue in the second urn is 4.

Step-by-step explanation:

Let second urn contain x number of blue ball .

Urn Red Ball Blue Ball Total Ball

1 4 6 10

2 16 x 16+x

Getting a red ball from first urn is $P(R_1)=\frac{\textrm {Number of red ball}}{\textrm {Total ball}}$ $=\frac{4}{10}$

Getting a blue ball from first urn is $P(B_1)=\frac{\textrm {Number of blue ball}}{\textrm {Total ball}}$ $=\frac {6}{10}$

Getting a red ball from second urn is $P(R_2)=\frac{\textrm {Number of red ball}}{\textrm {Total ball}}$ $=\frac{16}{16+x}$

Getting a blue ball from second urn is $P(B_2)=\frac{\textrm {Number of blue ball}}{\textrm {Total ball}}$ $=\frac {x}{16+x}$

Getting two red balls from first and second urn is $=\frac{4}{10}\times \frac{16}{16+x}$

$=\frac{32}{5(16+x)}$

Getting two blue balls from first and second urn is $=\frac{6}{10}\times \frac{x}{16+x}$

$=\frac{3x}{5(16+x)}$

The probability that both balls are the same in color is $=\frac{32}{5(16+x)}+\frac{3x}{5(16+x)}$

Given that the probability that both balls are the same in color is 0.44.

According to the problem,

$\frac{32}{5(16+x)}+\frac{3x}{5(16+x)}=0.44$

$\Rightarrow \frac{32+3x}{5(16+x)} =0.44$

$\Rightarrow \frac {32+3x}{(80+5x)} =0.44$

$\Rightarrow 32+3x =0.44(80+5x)$

$\Rightarrow 32+3x =35.2 +2.2x$

$\Rightarrow 3x -2.2 x= 35.2 -32$

$\Rightarrow 0.8x= 3.2$

$\Rightarrow x = 4$

Therefore the of blue in the second urn is 4.

5 0

2 years ago

Please help with number 22

mash [69]

3/4=(k+3)/9

27/4=k+3

k = 15/4 or 3.75

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2 years ago

NEED HELP PLEASEEEE!

vladimir1956 [14]

Answer:

181.76

Step-by-step explanation:

The calculator gave me this answer

5 0

3 years ago

Please help brainliest and 20 points!

Nadya [2.5K]

Answer:

I'm so sorry I can't help haven't learned how to do that yet

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3 years ago