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3 years ago

12

TYPOS BUT HELP ITS TIMED HAVE LIKE 30 seconds!!! one curvle has a circumfrence half as large as thay of a second curlcd. which r

atio compares the diaeter of the first circle to tje diameter of tje sefond curlce

1 answer:

ira [324]3 years ago

6 0

Answer:

DUDE ITS 1:2

Step-by-step explanation:

එඑඑඑඑඑඑඑඑ ඣහ

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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:

<em>The probability that the second ball is red is 71%</em>

Step-by-step explanation:

<u>Probabilities</u>

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

In the diagram, PQ¯¯¯¯¯¯¯¯ is tangent to the circle at point Q, and secant PS¯¯¯¯¯¯¯ intersects the circle at points R and S. Th

dimaraw [331]

The tangent secant theorem says

PR × PS = PQ²

4 × (4+5) = PQ²

36 = PQ²

PQ=6

Answer: 6

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3 years ago

John is hiking in the San Juan National Forest. Every 4 hours his elevation increases between 140 and 210 feet. 36 hours ago, Jo

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Answer D. It is the closets answer to my calculations so im sorry if im wrong

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3 years ago

kylee's car got broken into. her stereo and gps system, worth $400 total, were stolen. given kylee's insurance policy summary be

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She will be paid back about four hundred dollars total i hope it helps

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4 years ago

Read 2 more answers

If m∠9 = 130°, what is m∠4?

Bad White [126]

Answer:

m<9=130 it also equal to 180 so 130-180 makes m<4= 50

6 0

3 years ago