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Assoli18 [71]
3 years ago
13

The doctor ordered 800,000 units of a particular drug for a patient. The drug comes in a solution of 2,000,000 units per 10 cc.

How many cc should the nurse give the patient.
Mathematics
1 answer:
dalvyx [7]3 years ago
5 0

Answer:

199,200,000

Step-by-step explanation:

idk if thats correct hope it helps

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The mailing list of an agency that markets scuba-diving trips to the Florida Keys contains 78% males and 22% females. The agency
choli [55]

Answer:

a) 0.98% probability that 17 of the 29 people are men.

b) 3.86% probability that the first woman is reached on the 8th call

Step-by-step explanation:

For each person chosen by the agency, there are only two possible outcomes. Either it is a man, or it is a woman. The probability of selecting a man or a women in each trial is independent from other trials. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

(a) What is the probability that 17 of the 29 people are men?

This is P(X = 17) when n = 29, p = 0.78. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 17) = C_{29,17}.(0.78)^{17}.(0.22)^{12} = 0.0098

0.98% probability that 17 of the 29 people are men.

(b) What is the probability that the first woman is reached on the 8th call?

On the first 7 trials, all men, each with a 78% probability.

On the 8th trial, a women, with a 22% probability. So

P = (0.78)^{7}*0.22 = 0.0386

3.86% probability that the first woman is reached on the 8th call

4 0
3 years ago
Factor the expression x^4 -1 using the polynomial identify x^2-y^2)=(x-y)(x+y)
Orlov [11]

Answer:

(x - 1)(x + 1)(x² + 1)

Step-by-step explanation:

Step 1: Factor Difference of Squares

(x² - 1)(x² + 1)

Step 2: Factor Difference of Squares for non-complex binomial root

(x - 1)(x + 1)(x² + 1)

And we have our answer!

3 0
3 years ago
What is the value of x?
Salsk061 [2.6K]
THis is a hexagon and total of internal angles = 720 degrees 
so x is  720 - 112 - 133 - 128 - 100 - 120  =  127 degrees answer
4 0
3 years ago
A letter to europe from the united states costs $0.80 to mail. a letter mailed within the united states cost $0.37. nancy mails
densk [106]
She only sen 2 to Europe.
5 0
2 years ago
How many solutions does the system have? Y=-2x-4 y=3x+3
Fudgin [204]

Answer:

1

Step-by-step explanation:

Since they are not parallel nor the same line, they have 1 intersecting point, which is the solution.

If they were parallel, they would have no solution.

If they were the same line, they would have infinite solutions.

5 0
3 years ago
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