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IceJOKER [234]
3 years ago
15

A bag contains 8 blue marbles, 11 green marbles, and 7 red marbles. Which is the probability of drawing a green marble, replacin

g it AND then drawing a red marble from the bag?
A. 18

B. 77/676

C. 9/13
Mathematics
2 answers:
aev [14]3 years ago
8 0

Answer:

I think it would be C. 9/13.

Arturiano [62]3 years ago
5 0

Answer:

B

Step-by-step explanation:

11/26 x 7/26 = 77/676

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3 years ago
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What is the value of x if cos⁡x=3/5 *
Tresset [83]

Answer:

53.13

Step-by-step explanation:

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3 years ago
Segment CW is congruent to segment MQ
Fiesta28 [93]

Answer:

The true congruence statement is CW ≅ MQ ⇒ 2nd answer

Step-by-step explanation:

All the radii in the circle are congruent

From the attached figure

In circle B

∵ W, C, Q, and M lie on the edge of the circle

∴ BW, BC, BQ, and BM are radii

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∴ BW ≅ BC ≅ BQ ≅ BM

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5 0
3 years ago
Element X decays radioactively with a half life of 13 minutes. If there are 530 grams of Element X, how long, to the nearest ten
Leona [35]

Answer:

t \approx 50.4\,min

Step-by-step explanation:

The time constant of the element X is:

\tau = \frac{13\,min}{\ln 2}

\tau = 18.755\,min

The decay function has the following form:

\frac{m}{m_{o}} = e^{-\frac{t}{\tau} }

t = -\tau \cdot \ln \frac{m}{m_{o}}

t = -(13\,min)\cdot \ln \left(\frac{11\,g}{530\,g} \right)

t \approx 50.4\,min

6 0
3 years ago
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