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Andreyy89
3 years ago
10

4 (x - 1) = }(12x – 3)

Mathematics
1 answer:
slamgirl [31]3 years ago
4 0

Answer:

x= -1/8

Step-by-step explanation:

try using symbolab

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MT&A uses the function f(x)=475-15x-15x.to depreciate smart phones. where f represents the value of smart phone and x repres
Shalnov [3]

Answer:

Find the answers in the explanation

Step-by-step explanation:

The given function is

f(x)=475-15x

A.) To find f^-1 and explain what it represents in this situacions, let f(x) = y. That is,

Y = 475 - 15x

Interchange y and x and make y the subject of formula

X = 475 - 15y

-15y = x - 475

Y = 475/15 - x/15

Y = (475 - x) / 15

Therefore,

f^-1(x) = (475 - x) / 15

If the function depreciates the smartphone, then, the inverse function will appreciate it.

When will the deprecated value of smart phone be less than $100.00

Substitute 100 for f(x) and find x

100 = 475 - 15x

-15x = 100 - 475

-15x = - 375

X = 375/15

X = 25

Therefore, the deprecated value of smart phone be less than $100.00 in the next 26 months.

what does x represent in f^-1(x) =30?

X represent the number of months for the smartphone appreciations

What is the value of x?

Substitute the inverse function for 30 and make x the subject of formula in the equation

f^-1(x) = (475 - x) / 15

30 = (475 - x) / 15

Cross multiply

450 = 475 - x

X = 475 - 450

X = 25 months

Graph f(x) and f^-1 (x) on the same coordinate

4 0
3 years ago
Solve the compound inequality. Graph the solution<br> -2 ≤ 2x – 4 &lt; 4
Ulleksa [173]
-2 \ \textless \ = 2x - 4 \ \textless \  4 

-2+4\ \textless \ 2x\ \textless \ 4+4&#10; &#10;  Add \ 4 \ to \ the \ whole \ equation 

&#10;2\ \textless \ 2x\ \textless \ 8&#10; &#10;  Simplify \ inequality 

1\ \textless \ x\ \textless \  \dfrac{8}{2} Divide \ the \ whole \ equation \ by \ 2 

&#10;1\ \textless \ x\ \textless \ 4&#10; &#10; = (1,4)
5 0
3 years ago
a kitchen is shaped like a rectangle with dimensions of 4ft by 7ft. The floor of the rooms is made up of square tiles with a sid
Darina [25.2K]

Answer:

112 tiles

Step-by-step explanation:

Area = 28ft sq

Tiles are 1/4 each sqft

We are working cube square inside cube ft square = 1 sq /4 (for multiplier).

= 4 x 28 = 112

112 x 0.25 = 28 to check.

112 x 0.25 x 4 = 112 is the multiplier to check again.

5 0
3 years ago
Please help thank you so much!
Illusion [34]

Answer:

95

Step-by-step explanation:

Average =  

Sum

Count

=  

332

4

=  83

4 0
2 years ago
5) Contains (3,-1) and (6,- 13)<br> Help please
zimovet [89]

Answer:

The slope of the line is -12/3

Step-by-step explanation:

remember, rise over run

My I have brainliest please? :)

6 0
2 years ago
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