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3 years ago

8

Based on the results shown in the table, how many white marbles would one expect to draw in a total of 50 draws? (hint:set up a

proportion)

1 answer:

Dovator [93]3 years ago

8 0

The answer to your question is 10

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Can someone please answer this question?

tankabanditka [31]

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It is D because flip the sign and the circle is not shaded in, sharp point points to the right, so D is the ansewr

Step-by-step explanation:

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3 years ago

What are the roots of the equation 9x^2-42x+50=0 in simplest a+bi form?

Lapatulllka [165]

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-7/3 +\- 1/3i

Step-by-step explanation:

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4 years ago

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How many ways can 15 people be chosen from a group of 22

anzhelika [568]

Answer:

$170544\text{ ways}$

Step-by-step explanation:

If we don't care about the order (like if we pick Bob then Joe vs Joe then Bob), then a formula is $\frac{n!}k!{(n-k)!}$ where we are picking k items from a list of n items

In our case, n=22 and k=15

Therefore, there are $\frac{22!}{15!(22-15)!}=$

$\frac{22*21*20*19*18*17*16}{(7)!}=$

$\frac{22*21*20*19*18*17*16}{7*6*5*4*3*2*1}=$

$\frac{2*11*7*3*5*4*19*6*3*17*16}{7*6*5*4*3*2*1}=$

$11*19*3*17*16=$

$170544\text{ ways}$

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3 years ago

Susan spends 2 and 1/4 hours taking inventory and 1 and half hours restocking. How many hours does Susan work?

Dmitry_Shevchenko [17]

Answer:

3 and 3/4 hours, (3 hours and 45 minutes).

Step-by-step explanation:

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3 years ago