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3 years ago

Which equation results from adding the equations in this system?

2 answers:

german3 years ago

5 0

The table represents the relationship between the number of days, x, and the number of patients in a hospital showing flu symptoms.
100
18
13
Which statement is true?
The number of patients showing flu symptoms decreases at a constant rate as the number of days increases.
The number of patients showing flu symptoms decreases as the number of days increases but not at a constant rate.
The number of patients showing flu symptoms increases at a constant rate as the number of days increases.
The number of patients showing flu symptoms increases as the number of days increases but not at a constant rate.

Law Incorporation [45]3 years ago

4 0

Answer:

well, it's not c. Sorry I couldn't find the actual answer. Just took the test on edg

Step-by-step explanation:

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Deductive reasoning is reasoning based on:

Ira Lisetskai [31]

Accepted properties, laws, and definitions

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3 years ago

Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. n = 50 p = 0.2

Irina-Kira [14]

Answer:

The mean, variance, and standard deviation of the binomial distribution are 10, 8, and 2.83 respectively.

Step-by-step explanation:

We have to find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p, i.e; n = 50 p = 0.2.

Let X = binomial random variable

So, X ~ Binom(n = 50, p = 0.2)

Now, the mean of the binomial distribution is given by;

Mean of X, E(X) = n $\times$ p

= 50 $\times$ 0.2 = 10

Now, the variance of the binomial distribution is given by;

Variance of X, V(X) = n $\times$ p $\times$ (1 - p)

= 50 $\times$ 0.2 $\times$ (1 - 0.2)

= 10 $\times$ 0.8 = 8

Also, the standard deviation of the binomial distribution is given by;

Standard deviation of X, S.D.(X) = $\sqrt{\text{n} \times \text{p} \times (1 - \text{p})}$

= $\sqrt{\text{50} \times \text{0.2} \times (1 - \text{0.2})}$

= $\sqrt{8}$ = 2.83

3 0

3 years ago

A librarian choose seven holiday books from a selection of ten to be displayed in the window of the library. in how many differe

Sergeu [11.5K]

Answer:

$_{10}C_7=\frac{10!}{7!(10-7)!}\\\\=\frac{10!}{7!3!}=\frac{10\times 9\times 8\times ...}{(7\times 6\times 5\times...)(3\times 2\times 1)}\\\\=\frac{10\times 9\times 8}{3\times 2\times 1}=\frac{720}{6}=120$

Step-by-step explanation:

A librarian choose seven holiday books from a selection of ten to be displayed in the window of the library. in how many different ways can she chose seven books?

This is a combination of 10 objects chosen 7 at a time:

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3 years ago

What is the sum of 31 and the product of 234.

Ne4ueva [31]

The sum of 31 would i think be 15+16 and the product of 234 would maybe be 6 times 39? hope that helps :)

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2 years ago

What is the radical of 495?

Slav-nsk [51]

The square root of four hundred and ninety-five 3√55

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3 years ago