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3 years ago

What is the domain and range of 4n/n-5 -2?

Mathematics

2 answers:

nlexa [21]3 years ago

7 0

Answer:

Domain: (-∞, 5)∪ (5, ∞)

Range: (-∞, 2)∪ (2, ∞)

melisa1 [442]3 years ago

5 0

Answer: Domain: (−∞,0)∪(0,∞),{n|n≠0}(-∞,0)∪(0,∞),{n|n≠0}

Range: (−∞,∞),{y|y∈R}

Step-by-step explanation:

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34°

Effectus [21]

The answer to this question is D

3 0

3 years ago

£980 is divided between Caroline, Sarah & Gavyn so that Caroline gets twice as much as Sarah, and Sarah gets three times as

Nitella [24]

Sarah has received £ 294

Solution:

Given that £980 is divided between Caroline, Sarah & Gavyn

Let "c" be the amount received by caroline

Let "s" be the amount received by sarah

Let "g" be the amount received by gavyn

Caroline gets twice as much as Sarah

amount received by caroline = twice as much as Sarah

amount received by caroline = 2(amount received by sarah)

c = 2s ---- eqn 1

Sarah gets three times as much as Gavyn

amount received by sarah = three times as much as Gavyn

amount received by sarah = 3(amount received by gavyn)

s = 3g ------- eqn 2

Given that total amount is 980

c + s + g = 980 --- eqn 3

Let us solve eqn 1, 2, 3 to get values of "c" "s" "g"

From eqn 2,

$g = \frac{s}{3}$ --- eqn 4

Substitute eqn 1 and eqn 4 in eqn 3

$2s + s + \frac{s}{3} = 980\\\\\frac{6s + 3s + s}{3} = 980\\\\6s + 3s + s = 980 \times 3\\\\10s = 2940\\\\s = 294$

Thus sarah has received £ 294

7 0

3 years ago

Question 1

viktelen [127]

Given:

The demand function is,

$Q=-3p^2+2p+1970$

The total revenue function is,

$\begin{gathered} TR=p\times Q \\ TR=p\times(-3p^2+2p+1970) \\ TR=-3p^3+2p^2+1970p \end{gathered}$

Answer:

$TR=-3p^3+2p^2+1970p$

3 0

1 year ago

Which expression is equivalent to x^4 - 12x^2 + 36?

QveST [7]

So the answer is
(x^2 plus or minus 6)(x^2 plus or minus 6)
an easy way to do this is to only look at plus or minus 6
x^4 - 12x^2 + 36 (-12 and 36)

6 x 6 = 36
6 + 6 ≠ -12 (x^2 + 6)(x^2 + 6) is incorrect

6 x -6 ≠ 36
6 + -6 ≠ -12 (x^2 - 6)(x^2 + 6) is incorrect

-6 x -6 = 36
-6 + -6 = -12 (x^2 - 6)(x^2 - 6) is correct

the answer is (1)

3 0

3 years ago

Read 2 more answers

A sample is BEST defined as _________.

Thepotemich [5.8K]

Answer:

(B) A selected group of participants that is representative of a larger population

Step-by-step explanation:

A sample statistic is a piece of information that you get from a fraction of the population. This information is representative of a larger population.

For example, someone wants to conduct a survey about the most popular NFL team in Syracuse, NY, if it is the Buffalo Bills or the New York Giants. This person is not going to ask each person for whom they cheer. They are going to collect data from a fraction of the population and this data will be expanded to include the entire population.

So, the correct answer is:

(B) A selected group of participants that is representative of a larger population

7 0

4 years ago