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3 years ago

VERY REGENT PLEASE HELP

Mathematics

1 answer:

umka21 [38]3 years ago

3 0

Hold up I’m finna help u

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Find the number whose arithmetic square root is 0.6

slavikrds [6]

Answer: 0.36

Step-by-step explanation:

6/10 x 6.10= 36/100

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3 years ago

Wanda wants to buy 4.35 pounds of chicken salad. The grocery store sells chicken salad for $2.29 a pound. How much does the chic

LenKa [72]

This is very simple.

If you want 4.35 pounds, and it's 2.29 a pound, you simply multiply 4.35 by 2.29.

4.35 * 2.29 = 9.9615 or 10

The chicken salad costs $9.9615 or $10, whichever you need.

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3 years ago

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Find all zeros x^3-x^2-x+1=0

densk [106]

I think there is only one 0. If x=2, then 3 does not equal 0.

3 0

4 years ago

Quick help needed please

Neko [114]

Answer:

the correct answer is b

Step-by-step explanation: i just did the same question

3 0

3 years ago

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A bag contains some number of marbles. It is known that 20 of them are red. When 15 marbles are drawn, without replacement, we g

Llana [10]

Answer:

The total number of marbles in the bag is 50.

Step-by-step explanation:

Here, we have n trials, without replacement. So the hypergeometric distribution is used.

The mean of the hypergeometric distribution is:

$E(X) = \frac{n*k}{N}$

In which n is the number of items in the sample, k is the number of items in the population that are classified a success and N is the size of the population.

15 marbles are drawn:

This means that $n = 15$

A bag contains some number of marbles. It is known that 20 of them are red.

This means that $k = 20$ , since a success is drawing a red marble.

Assuming E(X)=6 red, what is the total number of marbles in the bag?

We have to find N when $E(X) = 6$

$E(X) = \frac{n*k}{N}$

$6 = \frac{15*20}{N}$

$6N = 300$

$N = \frac{300}{6}$

$N = 50$

The total number of marbles in the bag is 50.

8 0

3 years ago