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garri49 [273]
4 years ago
8

Urn 1 contains 7 red balls and 4 black balls. Urn 2 contains 3 red ball and 1 black ball. Urn 3 contains 5 red balls and 1 black

balls. If an urn is selected at random and a ball is drawn, find the probability that it be red.
Mathematics
1 answer:
Marrrta [24]4 years ago
5 0
Choice urn_1: 1/3
    choice R: 5/8        ==>1/3*5/8=5/24
Choice urn_2: 1/3
   Choice R: 3/4        ==> 1/3*3/4=1/4
Choice urn_3: 1/3
   Choice R:4/6=2/3  ==> 1/3*2/3=2/9

Total: 5/24+1/4+2/9=15/72+18/72+16/72=49/72

Read more on Brainly.com - brainly.com/question/1904508#readmore
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alexandr1967 [171]

Answer:

One

Step-by-step explanation:

Each set is supposed to have one of each. Since there is only one dresser, you can only select one bedroom set.  

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3 years ago
Plz answer question in screen shot
lisov135 [29]

Answer:

200√3

Step-by-step explanation:

The triangle given here is a special right triangle, one with angles measuring 30-60-90 degrees. The rule for triangles like these are that the side opposite the 30° angle can be considered x, and the side opposite the 60° angle is x√3, while the hypotenuse, or side opposite the right angle, is 2x. All we need to know here are the two legs to find the area.

Since b is opposite the 30° angle, it is x, while side RS is opposite the 60° angle, meaning it is equal to x√3, meaning that the area of the triangle is 1/2*x*x√3. We can substitute in 20 for x, making our area 1/2*20*20√3. Multiplying we get 10*20√3, or 200√3.

6 0
4 years ago
When 9 Superscript two-thirds is written in simplest radical form, which value remains under the radical?
salantis [7]

Answer:

  3

Step-by-step explanation:

9^{\frac{2}{3}}=(3^2)^{\frac{2}{3}}=3^{\frac{4}{3}}=3\cdot 3^{\frac{1}{3}}\\\\=3\sqrt[3]{3}

9 0
3 years ago
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A rectangle has a length of 19 in and a height of 11 in. Another rectangle has a length of 95
scoundrel [369]

Answer:

Option D. No,they are not similar because their side lengths are not proportional.

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem If the rectangles are similar

then

The ratio of its corresponding lengths must be equal to the ratio of its corresponding heights

<u><em>Verify</em></u>

\frac{95}{19}=\frac{6.5}{11}\\\\95*11=19*6.5\\\\1,045\neq123.5

therefore

The rectangles are not similar because their side lengths are not proportional.

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3 years ago
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Ivenika [448]

Answer:

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B.The x-intercept of g(x) is less than the x-intercept of f(x).

C. The y-intercept of g(x) is greater than the y-intercept of f(x).

D. The x-intercept of g(x) is greater than the x-intercept of Ax).​

(A) I think

Step-by-step explanation:

8 0
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