What is the domain of the function v=−6r2 if the range is v≤0?

How do you check 4b+6=-2

Verdich [7]

By solving the equation:

4b + 6 = -2

4b = -2 - 6 (taking 6 from each side)

4b = -8

b = -2 (divide both sides by 4)

5 0

3 years ago

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The total revenue from the sale of a popular book is approximated by the rational function, R(x)=1100x^2/x^2 + 4 where x is the

vazorg [7]

Answer:

The answer is below

Step-by-step explanation:

The total revenue from the sale of a popular book is approximated by the rational R(x) = 1100x^2/x^2 + 4, where x is the number of years since publication and the total revenue in millions of dollars. Use this function to complete parts a through d. (a) Find the total revenue at the end of the first year. $ million (b) Find the total revenue at the end of the second year. $ million (c) Find the domain of function R. Choose the correct domain below. {x | x is a real number and x greaterthanorequalto 0} {x | x is a real number and x lessthanorequalto 5} {x | x is a real number and x notequalto 2, x notequalto 5} {x | x is a real number and x notequalto 2}

Solution:

Revenue is the total money made from the selling of a product or item.

a) Given the revenue function:

$R(x)=\frac{1100x^2}{x^2+4}$

At the end of the first year (i.e. x = 1), the venue is given as:

$R(1)=\frac{1100(1)^2}{(1)^2+4} =220\\\\R(1)=\$ 220\ million$

b) At the end of the second year (i.e. x = 2), the venue is given as:

$R(2)=\frac{1100(2)^2}{(2)^2+4} =220\\\\R(2)=\$ 550\ million$

c) The domain of the function is the value of the denominator for which the value of the denominator is not zero

x² + 4 ≠ 0

The domain is {x| x is a real number and x ≥ 0}

3 0

3 years ago

EASY POINTS! WILL GIVE BRAINLIEST!

viktelen [127]

The brackets containing 7 have moved. That is, 7 is associated with something different on the left and right sides of the equation. The property that lets you do that is ...

... associative property

_____

Either way you evaluate the equation, it comes out

... 3 + 3 = 10 - 4

... 6 = 6

The appropriate choice is ...

... 6 . . . . . the second selection

4 0

3 years ago

Can someone write the answer in a fraction or integer please

Nutka1998 [239]

Answer:

but i think smar 5555

4 0

3 years ago

A literature professor decides to give a 10-questiontrue-false quiz to determine who has read an as-signed novel. She wants to c

Darya [45]

Answer:

The teacher should set the score 7 as the lowest passing grade.

Step-by-step explanation:

Let X = number of correct guesses.

All the questions are of true-false format.

The probability of getting a correct answer is, p = 0.50.

The total number of questions is, n = 10.

The random variable X follows a Binomial distribution with parameters n = 10 and p = 0.50.

The probability mass function of X is:

$P(X=x)={10\chose x}0.50^{x}(1-0.50)^{10-x};\ x=0,1,2,3...$

Now the teaches chose the grading scheme such that the probability of passing a student who guesses on every question is less than 0.05.

Then the probability of failing such a students is at least 1 - 0.05 = 0.95.

Compute the probability distribution of X.

Consider the probability distribution attached below.

The value of x for which P (X ≤ x) is at least 0.95 is, x = 7.

So the teacher should set the score 7 as the lowest passing grade.

7 0

3 years ago