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3 years ago

If two functions are inverses of each other, which 2 statements are true?

Mathematics

1 answer:

galben [10]3 years ago

3 0

Answer:

A and B

Step-by-step explanation:

To be inverses, the inverse composite functions must equal x, since the input and output must be equal as how much you used as your input, which is x. B proves that. Also, the graph must reflect over y = x, which is the line that runs through the origin

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Write an equation for the line parallel to the line 5/8x−7/6y =2 through the point (7,−1).

LiRa [457]

$y = - \frac{28}{48x - 15} - \frac{125}{321}$ is the answer.

Step-by-step explanation:

For this question,

• First, find the slope of the line parallel to the line 5/8x−7/6y=2 :-

$m = - \frac{28}{ - 15 + 48x}$

•Second, find the equation of the line,

$y = - \frac{28}{48x - 15} - \frac{125}{321}$

7 0

2 years ago

Which is the first step in solving

sammy [17]

Answer:

X-4=4

Solution :

X=4+4

X=8

4 0

2 years ago

Joshua wants to buy a flat-screen TV that costs $625. He saves $62.50 each week to buy the TV. In how many weeks will he have en

MissTica

Answer:

<h2>C. 10 weeks</h2>

Step-by-step explanation:

Joshua wants to buy a flat-screen TV that costs $625. He saves $62.50 each week to buy the TV. In how many weeks will he have enough money to make his purchase?

A. 8

B. 9

C. 10

D. 11

cost of television divided by weekly savings = number of weeks

625 : 62.50 = 10 weeks

6 0

2 years ago

8 Which expression is equivalent to 4.8 + 2.2w – 1.4w + 2.4?

krok68 [10]

Answer:

7.2 + 0.8w

Step-by-step explanation:

Combine like terms.

Here Like terms: i) 2.2w and (-1.4w)

II) 4.8 and 2.4

4.8 + 2.2w - 1.4w + 2.4 = 4.8 + 2.4 + 2.2w - 1.4w

= 7.2 + 0.8w

8 0

3 years ago

Please help! thankyou!

AlladinOne [14]

Answer: OPTION B.

Step-by-step explanation:

By definition, the slope equals the Rise divided by the Run; then, the slope can be found using the following formula:

$Slope=\frac{Rise}{Run}$

Where "Rise" is the vertical change between two points and "Run" is the horizontal change between those two points.

In this case you can identify in the figure that:

$Rise=3\\\\Run=10$

Knowing these values, you can substitute them into the formula.

Through this procedure you get that the slope of the ramp is:

$Slope=\frac{3}{10}$

6 0

2 years ago