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ra1l [238]
2 years ago
13

Which of these systems of linear equations has an infinite number of solution

Mathematics
1 answer:
Lisa [10]2 years ago
6 0

Answer:

A

Step-by-step explanation:

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Find the inverse of each function<br><br> 1. f(x) = 4/(x+2) - 2<br><br> 2. f(x)= -2x^5 - 3
lisabon 2012 [21]

We are given the following function:

f(x) = 4/(x+2) - 2

We are asked to determine the inverse of this function. To do that we will first change the "f(x)" for "y":

y =  \frac{4}{x + 2}  - 2

Now we will switch "x" and "y", like this:

x =  \frac{4}{x + 2}  - 2

Now we will solve for "y", first by adding 2 to both sides:

x + 2 =  \frac{4}{y + 2}

Now we multiply both sides by "y+2":

(y + 2)(x + 2) = 4

Now we divide both sides by "x+2":

y + 2 =  \frac{4}{x + 2}

Now we subtract 2 to both sides:

y =  \frac{4}{x + 2}  - 2

Now we change "y" for the inverse of f(x), that is:

{f}^{ - 1} (x) =  \frac{4}{x + 2}  - 2

And thus we found the inverse. A similar procedure can be used for function 2.

8 0
3 years ago
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What is the answer to -5x+7y=11<br> -5x+3y=19
marusya05 [52]
\left\{\begin{array}{ccc}-5x+7y=11\\-5x+3y=19&/\cdot(-1)\end{array}\right\\+\left\{\begin{array}{ccc}-5x+7y=11\\5x-3y=-19\end{array}\right\\-------------\\.\ \ \ \ \ \ \ \ 4y=-8\ \ \ \ |divide\ both\ sides\ by\ 4\\.\ \ \ \ \ \ \ \ \ y=-2\\5x-3(-2)=-19\\5x+6=-19\\5x=-19-6\\5x=-25\ \ \ \ \ |divide\ both\ sides\ by\ 5\\x=-5\\\\Answer:x=-5\ and\ y=-2

3 0
2 years ago
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Hey um does anyone wanna help me?
hram777 [196]

Answer:

1. Multiples

2. factors

3.multiples

4.factor

5.factor

Step-by-step explanation:

4 0
3 years ago
Sam takes a taxi in Chicago. The taxi charges $0.75 per mile and a flat fee of $1.60. If he has at most 10 dollars
Anni [7]
10 - 1.60= 8.40
8.40/0.75=11.2 miles
5 0
3 years ago
A 60 foot ladder is leaned against the side of a building. The bottom of the ladder is 36feet from the building. How high up the
Natasha2012 [34]

Answer:

24 feet 60-36=24

Step-by-step explanation:

Let me know if this is right.

8 0
2 years ago
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