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3 years ago

Please help, I will give brainlist

Mathematics

1 answer:

goldfiish [28.3K]3 years ago

6 0

Answer:

Sarah will earn $25.984 in interest in 7 years.

Step-by-step explanation:

1. $64 x 5.8% = $3.712

2. $3.712 x 7 years = $25.984

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Chris sells books for a commission of $2.60 per book and $50 a month. His salary is determined by the function M=2.60 b+50, wher

vazorg [7]

$115 hope this helps

3 0

3 years ago

Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms. y=(x-1)(4x+2)-4x^2

myrzilka [38]

Linear. The 4x^2 will cancel out

4 0

3 years ago

What year is 40040040040049039qji34btuewrbgsnbbg snk g smart

raketka [301]

What? I don’t understand lol

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3 years ago

If we sample from a small finite population without replacement, the binomial distribution should not be used because the event

seropon [69]

Answer:

5/4324 = 0.001156337

Step-by-step explanation:

To better understand the hyper-geometric distribution consider the following example:

There are 100 senators in the US Congress, and suppose 60 of them are republicans so 100 - 60 = 40 are democrats).

We extract a random sample of 30 senators and we want to answer this question:

What is the probability that 10 senators in the sample are republicans (and of course, 30 - 10 = 20 democrats)?

The answer using the h-g distribution is:

$\large \frac{\binom{60}{10}\binom{100-60}{30-10}}{\binom{100}{30}}=\frac{\binom{60}{10}\binom{40}{20}}{\binom{100}{30}}$

Now, imagine there are 56 senators (56 lottery numbers), 6 are republicans (6 winning numbers and 50 losers), we extract a sample of 6 senators (the bettor selects 6 numbers). What is the probability that 4 senators are republicans? (What is the probability that 4 numbers are winners?).

<em>As we see, the situation is exactly the same,</em> but changing the numbers. So the answer would be

$\large \frac{\binom{6}{4}\binom{56-6}{6-4}}{\binom{56}{6}}=\frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}$

Now compute each combination separately:

$\large \binom{6}{4}=\frac{6!}{4!2!}=15\\\\\binom{50}{2}=\frac{50!}{2!48!}=1225\\\\\binom{50}{6}=\frac{50!}{6!44!}=15890700$

and now replace the values:

$\large \frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}=\frac{15*1225}{15890700}=\frac{18375}{15890700}=\frac{5}{4324}$

and that is it.

If the decimal expression is preferred then divide the fractions to get 0.001156337

6 0

3 years ago

MUSTONENTS

VMariaS [17]

Answer:

15 quarters

Step-by-step explanation:

15 quarters = $3.75

21 dimes = $2.10

15 + 21 = 36 coins

3.75 + 2.10 = 5.85

4 0

3 years ago