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AveGali [126]
3 years ago
6

Find the inverse of each function.

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0

as you should know, to get the inverse of any expression, we start off by doing a quick switcheroo on the variables and then solve for "y".

\stackrel{f(x)}{y}=\sqrt{x}-5\implies \stackrel{\textit{quick switcheroo}}{x=\sqrt{y}-5}\implies x+5=\sqrt{y} \implies (x+5)^2=y \\\\\\ \stackrel{F~O~I~L}{(x+5)(x+5)}=y\implies x^2+10x+25=\stackrel{f^{-1}(x)}{y}

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HELPPP MEEE PLEASEE!!!!!
Sergio [31]

For this case we have that, by definition, the domain of a function is given by all the values for which the function is defined.

Having said that, we have the following function:

r (x) = \frac {2x} {x-1}

It is not defined when the denominator is equal to 0. That is:

x-1 = 0\\x = 0 + 1\\x = 1

Thus, the domain of r (x) is given by all real numbers except 1.

Answer:

all real numbers except 1.

Option A

6 0
4 years ago
What are the equations for the asymptotes of this hyperbola
Fofino [41]

Answer:

its d

Step-by-step explanation:

5 0
3 years ago
Image is below, please help me fast i have 2 minutes left, thank you very much
Yuki888 [10]

Answer:

45

Step-by-step explanation:

1/3 of 90

= 1/3 * 90

= 90/3

= 30

Let the missing number be x.

2/3 of x

= 2/3 * x

= 2x/3

30 = 2x/3

Cross multiply,

2x = 30 * 3

2x = 90

x = 90/2

x = 45

Hence,

the missing number is 45.

5 0
2 years ago
HELP ITS FOR 25 POINTS, i really needa finish
SSSSS [86.1K]

Answer:

Which gas creates the longest wavelength?

→Argon gas

Which gas creates the shortest wavelength?

→ Fluorine gas

Explaination:

1.0×10^-6 > 1.0×10^-7 > 1.0×10^-10 (a^-n =1/a^n)

8 0
2 years ago
Noah says:
kaheart [24]
Answer: 21

Explanation:

21 - 17 = 4
4 * 8 = 32

Therefore the number is 21
4 0
3 years ago
Read 2 more answers
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