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iren [92.7K]
4 years ago
13

Plz help me i need it

Mathematics
2 answers:
Sonbull [250]4 years ago
7 0

Answer: I believe the correct answer is always because function of a function would be function. So, the answer would be A. always:)

* Hopefully this helps:) Mark me the brainliest:)!!

<em>∞ 234483279c20∞</em>

ikadub [295]4 years ago
3 0

Answer:   sometimes

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

Examples:

Given the function: y = x

The inverse is: x = y, which IS a function.  

Given the function: y = x²

The inverse is: x = ±√y, which is NOT a function  

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Anna has $430. She wants to buy a phone that costs $275. Anna will also have to pay a sales tax of 7%.
ki77a [65]
19.25 (tax)
294.25 (total price)
135.75 (money left)

REASONING:

In this word problem it says Anna has 430 dollars. The phone costs 275 dollars. It also says that when she buys the phone, she will have to pay a tax of 7%.

To find how much tax she will pay, we must do [275] x [0.07]

After inputting this into a calculator, you will get 19.25 (tax)


To find the total price, all you have to do is add 19.25 to 275. When you do this, you will get 294.25 dollars (total price)


To find how much money she has left,

430-294.25=135.75 (money left)

5 0
3 years ago
Graph the solution set of this inequality: 5x − 4y &gt; 20.
Yanka [14]

Answer:

Step-by-step explanation:

Solve the inequality 5x − 4y > 20 for y, as follows:  Subtract 5x from both sides, obtaining:

-4y > 20 - 5x;

Then divide all terms by -4:

y    < -5 +(5/4)x, where the direction of the inequality sign has been reversed because of division by a negative quantity.

Temporarily replace the < symbol with =     obtaining    y = -5 +(5/4)x.  Now choose at least three x values and find the corresponding y values.  For example:

 x      y = -5 +(5/4)x  

 0          -5

 4            0

 -8         -15

Now plot these three points (0, -5), (4, 0) and (-8, -15).  Draw a dashed line through them.  Because of the < symbol in y    < -5 +(5/4)x, shade the area underneath the dashed line.

3 0
4 years ago
"8% of a number is 20."
andreyandreev [35.5K]

Answer: 250

Step-by-step explanation:

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omeli [17]

Answer:

<h2>A</h2>

Step-by-step explanation:

The Commutative Property of Multiplication states that it doesn't matter in what order you multiply terms to get the same answer:

In this case

A: commutative property

B: distributive property

C: distributive property

D: associative property

Thus the answer is option A

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3 years ago
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GenaCL600 [577]

Answer:

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