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3 years ago

Select the correct answer. Which rate is equivalent to 72/9?

Mathematics

2 answers:

tatuchka [14]3 years ago

7 0

Answer: A

Step-by-step explanation:

72/9 simplified is 8/1

you can check by dividing by the Greatest Common Factor which

happens to be the denominator in this situation.

Taya2010 [7]3 years ago

4 0

Answer:

A. 8/1

Step-by-step explanation:

72/9= 9*8/9*1= 8/1

Option A

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Suppose a manufacturer sells a product as $2 per unit. If q units are sold, (a) write the total revenue function, (b) and find t

Ahat [919]

Answer:

We are given that a manufacturer sells a product as $2 per unit.

Quantity = q units

So, Total revenue = $\text{Cost per unit} \times quantity$

Total revenue = $2q$

So, the total revenue function is $2q$

Marginal revenue is the derivative of the revenue functions

So, Marginal revenue = $\frac{dR}{dq} =2$

The marginal revenue function is 2

The constant marginal revenue function mean that the revenue earned by the addition of the output is constant.

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3 years ago

For the direct variation such that when y = 2 then x = 3 , find the constant of variation ( k) and then find the value of y when

Sergeu [11.5K]

Answer:

k is 2/3 and y is -1/3 when x is -0.5.

Step-by-step explanation:

The direct variation relationship is y = kx, where k is the const. of var.

Subbing 3 for x and 2 for y, 2 = 3k, or k = 2/3.

Now, if x = -0.5, y = (2/3)(-1/2) = -1/3

k is 2/3 and y is -1/3 when x is -0.5.

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3 years ago

Software filters rely heavily on ""blacklists"" (lists of known ""phishing"" URLs) to detect fraudulent e-mails. But such filter

crimeas [40]

Answer:

a) $X \sim Binom(n=16, p=0.2)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

The expected value is given by this formula:

$E(X) = np=16*0.2=3.2$

b) $P(X=0)=(16C0)(0.2)^{0} (1-0.2)^{16-0}=0.02815$

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Part a

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=16, p=0.2)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

The expected value is given by this formula:

$E(X) = np=16*0.2=3.2$

Part b

For this case we want this probability:

$P(X=0)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And using this function we got:

$P(X=0)=(16C0)(0.2)^{0} (1-0.2)^{16-0}=0.02815$

6 0

3 years ago

Classify the following triangle. Check all that apply

kramer

D and E. If I remember right that should be the answer.

7 0

3 years ago

Read 2 more answers

Through: (1, -3), slope = -4<br> A) y=-x+4 B) y = x +4<br> C) y = 4x + 1 D) y=-4x + 1

Rudik [331]

Answer:

D) y = -4x + 1

8 0

3 years ago