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GREYUIT [131]
3 years ago
8

A box contains 100 balls, of which r are red. suppose that the balls are drawn from the box one at a time, at random, without re

placement. determine (a) the probability that the first ball drawn will be red; (b) the probability that the 50th ball drawn will be red; and (c) the probability that the last ball drawn will be red.

Mathematics
1 answer:
777dan777 [17]3 years ago
5 0
See work shown in image

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andreyandreev [35.5K]

Answer:

V plus 5 is four

Step-by-step explanation:

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ride to reach the end of his ramp? Give the exact

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10

SIMPLIFY THE RADICAL.

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8 0
3 years ago
Helppp!!!!
svetlana [45]

Answer:

1. he took 8/12 for lunch, but 1/12 is left

2. she ate 2/5, but there's 4/15 left of the whole cake that is untouched

Step-by-step explanation:

i hope this helps, the wording is a little confusing to me tho

3 0
3 years ago
Read 2 more answers
Catherine is a sixth grader at her school. The sixth graders are collecting food items to donate to the local shelter. Their goa
Goryan [66]

Answer:A= 7

Step-by-step explanation:

y=mx+b

512=114x+134

subtract 134 from both sides of the equation,

378=114x

Divide 144 from both sides of the equation to get x by itself

x=6.25

you'll round up because you can't really have a quarter day.

A= 7

3 0
3 years ago
Aidan has 20 ft of fence with which to build a rectangular dog run. What is the maximum area he can enclose? Enter your answer i
irina1246 [14]
<h2>Maximum area is 25 m²</h2>

Explanation:

Let L be the length and W be the width.

Aidan has 20 ft of fence with which to build a rectangular dog run.

         Fencing = 2L + 2W  = 20 ft

                     L + W = 10

                      W = 10 - L

We need to find what is the largest area that can be enclosed.

     Area = Length x Width

      A = LW

       A = L x (10-L) = 10 L - L²

For maximum area differential is zero

So we have

      dA = 0

      10 - 2 L = 0

        L = 5 m

      W = 10 - 5 = 5 m

Area = 5 x 5 = 25 m²

Maximum area is 25 m²

7 0
3 years ago
Determine whether the following series converge or diverge
Mars2501 [29]
An alternating series \sum\limits_n(-1)^na_n converges if |(-1)^na_n|=|a_n| is monotonic and a_n\to0 as n\to\infty. Here a_n=\dfrac1{\ln(n+1)}.

Let f(x)=\ln(x+1). Then f'(x)=\dfrac1{x+1}, which is positive for all x>-1, so \ln(x+1) is monotonically increasing for x>-1. This would mean \dfrac1{\ln(x+1)} must be a monotonically decreasing sequence over the same interval, and so must a_n.

Because a_n is monotonically increasing, but will still always be positive, it follows that a_n\to0 as n\to\infty.

So, \sum\limits_n(-1)^na_n converges.
5 0
3 years ago
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