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2 years ago

I don’t understand this question please help

Mathematics

2 answers:

inn [45]2 years ago

3 0

A is the correct answer, NOT c. You don't list elements of the domain each time they occur, you enter each element of the domain only once

abruzzese [7]2 years ago

3 0

The answer is A as x values are the domain

You might be interested in

-3c=15 c = __ help plz

LuckyWell [14K]

You would divide negative 3 (-3) from both sides to keep the c by itself. When you divide a positive by a negative it becomes negative.

Dividing 15 by -3 would equal -5, so c = -5

7 0

3 years ago

Jim is two years older than his sister Mary. The sum of their ages is greater than 32. Describe Mary’s age. Create and inequalit

-Dominant- [34]

Let the two ages be j and m, respectively. Then j+m>32.

Solving for Mary's age, we get m > 32 - j. Because j = m + 2, m > 32 - (m+2).

Continue solving for m: Adding m to both sides of this inequality results in

2m > 32 - 2. Then 2m > 30, and m > 15. Mary's age is greater than 15.

4 0

3 years ago

Suppose the CPI increases this year from 208 to 221. What is the rate of inflation for this year? Round your answer to the neare

guajiro [1.7K]

SOLUTION:

We are to find the rate of inflation in the given question;

The formula to be used is;

Inflation rate =

$\frac{\text{CPI}_{present}-CPI_{previous}}{CPI_{previous}_{}}\text{ X 100}$ $\begin{gathered} \frac{221-208}{208}\text{ X }\frac{100}{1} \\ \\ \frac{13}{208}X\frac{100}{1} \\ \\ 6.25\text{ \%} \\ 6.3\text{ \% (nearest tenth of a percentage)} \end{gathered}$

CONCLUSION

The inflation rate of CPI that increased from 208 to 221 to the nearest tenth of a percentage is 6.3%.

8 0

1 year ago

Determine whether the function f(x) = 4x3 is even or odd.

nikitadnepr [17]

Answer:

Its the last option.

Step-by-step explanation:

f(x) = 4x^3.

f(-x) =

4(-x)^3 = - 4x^3

so f(x) = = -f(x) so the function is odd.

5 0

2 years ago

Read 2 more answers

Let f(x)=3x-6. Is f one-to-one? If it is find f^-1, if not explain why.

beks73 [17]

Answer: Yes, $\bold{f^{-1}(x)=\dfrac{x+6}{3}}$

<u>Step-by-step explanation:</u>

f(x) = 3x - 6 is a line so it is a function because

it passes the vertical line test

and the horizontal line test

To find the inverse, swap the x's and y's and solve for y

$y=3x-6\\\\\\\text{Swap the x's and y's:}\qquad x=3y-6\\\\\text{Add 6 to both sides:}\qquad x+6=3y\\\\\text{Divide both sides by 3:}\qquad \dfrac{x+6}{3}=y$

8 0

3 years ago