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mina [271]
3 years ago
5

The answer please please

Mathematics
2 answers:
Juliette [100K]3 years ago
8 0

I believe it is C because I did this and I got a 100% on my test

ipn [44]3 years ago
6 0

i think it is A

tell me if im wrong

i hope this helps

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Ana needs 40 mg of medicine twice a day. Each medicine tablet contains 15 mg, how many tablets will Ana need for 2 days?
Stella [2.4K]

Answer:

She will need 10 full tablets and two thirds of a tablet

Step-by-step explanation:

First we will find how many tablets ana needs for one day:

In each day ana needs 40x2 mg of medicine, they come in tablets of 15 mg. In one day, she needs 80 / 15 =  5 and 1/3 of a tablet.

In two days, she needs double that amount. (5 and 1/3) x 2 = 10 and 2/3

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3 years ago
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Jake wants to make a garden with a border in the corner of his yard. He has lumber in several different lengths. Which three len
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Step-by-step explanation:

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3 years ago
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The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What
Tcecarenko [31]

Answer:

Mean = 0.36

SD = 0.5817

P(x=3) = 0.003588

Step-by-step explanation:

Given

Let

A = Event of being a universal donor.

So:

P(A) = 0.06

n = 6

Solving (a): Mean and Standard deviation.

The mean is:

Mean = np

Mean = 6 * 0.06

Mean = 0.36

The standard deviation is:

SD = \sqrt{np(1-p)}

SD = \sqrt{6*0.06*(1-0.06)}

SD = \sqrt{0.3384}

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Solving (b): P(x = 3)

The event is a binomial event an dthe probability is calculated as:

P(x) = ^nC_x * p^x * (1-p)^{n-x}

So, we have:

P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}

P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^3

P(x=3) = 20 * 0.06^3 * (1-0.06)^3

P(x=3) = 0.003588

7 0
3 years ago
Whats half of 60 people?
Yanka [14]
30 people half of 60 is 30
4 0
3 years ago
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