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3 years ago

ANSWER THIS QUESTION FOR BRAINLEST AND 10 POINTS

Mathematics

1 answer:

Nezavi [6.7K]3 years ago

3 0

C,dilated means to become larger,or wider in size

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An urn contains 5 red balls and 2 green balls. Two balls are drawn one after the other. What is the probability that the second

AleksAgata [21]

Answer:

The probability that the second ball is red is 71%

Step-by-step explanation:

Probabilities

We know there are 5 red balls and 2 green balls. Let's analyze what can happen when two balls are drawn in sequence (no reposition).

The first ball can be red (R) or green (G). The probability that it's red is computed by

$\displaystyle P(R)=\frac{5}{7}$

The probability is's green is computed by

$\displaystyle P(G)=\frac{2}{7}$

If we have drawn a red ball, there are only 4 of them out of 6 in the urn, so the probability to draw a second red ball is

$\displaystyle P(RR)=\frac{5}{7}\cdot \frac{4}{6}=\frac{10}{21}$

If we have drawn a green ball, there are still 5 red balls out of 6 in the urn, so the probability to draw a red ball now is

$\displaystyle P(GR)=\frac{2}{7}\cdot \frac{5}{6}=\frac{5}{21}$

The total probability of the second ball being red is

$\displaystyle P(XR)=\frac{10}{21}+\frac{5}{21}=\frac{5}{7}=0.71$

The probability that the second ball is red is 71%

7 0

3 years ago

Which property is shown? If m∠ABC = m∠CBD, then m∠CBD = m∠ABC

otez555 [7]

ANSWER: symmetric property

hope it helps thanks

brainliest pls

6 0

3 years ago

Read 2 more answers

Which Statement or Inequalities describe the number line graph?

Vika [28.1K]

I might be wrong but:

x is less than negative three and x is greater than or equal to negative one.

Inequality is x<-3 and x ≥ -1

8 0

3 years ago

Which expression is equivalent to 3(m − 3) + 4?

Elanso [62]

Answer:

3m − 5

Step-by-step explanation:

4 0

3 years ago

in a tournament, amanda scored 136 points in the first round and 127 points in the second round whatwas her percentage change be

skelet666 [1.2K]

Percent change = (new number - old number)/(old number) * 100

percent change = (127 - 136)/(136) * 100

percent change = -6.62%

Since the percent change is negative it is a percent decrease.

Answer: 6.62% decrease.

5 0

3 years ago