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2 years ago

Which value is an input of the function

Mathematics

2 answers:

uranmaximum [27]2 years ago

3 0

the answer to this equation is 4

zavuch27 [327]2 years ago

3 0

Answer:

D. 4

Step-by-step explanation:

We have been given graph of a function. We are asked to choose the value, which is input of the given function.

We know that input of a function is value of the independent variable. Upon looking at our given graph, we can see that x is independent variable.

All the values in domain of our a function will be input values.

We can see that domain of our given function is $[1,\infty)$ .

Our function is defined for x values that are greater than or equal to 1, so first three options are not correct choice.

Since our function is defined at $x=4$ , therefore, 4 is an input of the given function.

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2 years ago

Ethan sold 2 3 gallon of lemonade. Kayla sold some lemonade too. Together, they sold 1 1 4 gallons. Who sold more lemonade, Etha

zhenek [66]

Step-by-step explanation:

Ethan sold 2/3 gallon of lemonade.

Kayla sold some lemonade too.

Together they sold 1 1/4 gallons.

Subtract 2/3 from 1 1/4 as follows :

$S=1\dfrac{1}{4}-\dfrac{2}{3}\\\\=\dfrac{5}{4}-\dfrac{2}{3}\\\\=\dfrac{7}{12}$

So, Kayla sold 7/12 gallons of lemonade.

As 2/3 is more than 7/12, it means Ethan sold more lemonade.

$\dfrac{2}{3}-\dfrac{7}{12}=\dfrac{1}{12}$

It means Eathn sold 1/12 more lemonade.

5 0

3 years ago

If I buy a stereo for $245 and this includes GST of 10%, what is the pre-GST price?

Ivan

Answer: $222.73

===========================================

Work Shown:

x = pre-GST price

10% of x = 0.10x = tax amount

x + 0.10x = 1.10x = post-GST price = 245

1.10x = 245

x = 245/1.10

x = 222.7272 approximately

x = 222.73 is the price before tax.

------------

Check:

10% of 222.73 = 0.10*222.73 = 22.273 = 22.27

The tax amount ($22.27) is added to the pre-GST price to get

22.27+222.73 = 245

which matches the post-GST price mentioned.

The answer is confirmed.

Or another way to confirm the answer is to calculate this

1.10*222.73 = 245.003 = 245

6 0

2 years ago

Read 2 more answers