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3 years ago

I dont know how to do this pls help me

Mathematics

1 answer:

kozerog [31]3 years ago

6 0

Answer:

8) x = 12

9) x = 12

Step-by-step explanation:

Use geometric mean of legs

$15 = \sqrt{9^2 + x^2}$

x=12

10)

Use geometric mean of legs

$60 = \sqrt{(36+x)^2+36^2}$

x=12

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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

3 years ago

What is |27| ? find the ansrew

allochka39001 [22]

Answer:

it is 27

Step-by-step explanation:

it is asking for absolute value of 27 which means how far is that number from 0. so it would be 27.

3 0

3 years ago

Read 2 more answers

So do you know ughhh

Sauron [17]

The answer is 6 i hope this helped you

7 0

3 years ago

Caterers made 272 cups of punch for a party. They will distribute the punch equally into 6 bowls. How many cups of punch will ea

motikmotik

Answer:

45.33 cups.

Step-by-step explanation:

272 divided by 6 gives this answer

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3 years ago

The cooper family owns a luxury sedan and a compact car. The fuel tank capacity of the luxury sedan 9s 22.45 gallons and that of

Viefleur [7K]

Answer:

$13.75\ gal$

Step-by-step explanation:

we know that

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4 0

3 years ago

I dont know how to do this pls help me ​

I dont know how to do this pls help me