2 years ago

Choose the correct description based on the equation. 4x + 2 = 39

Mathematics

1 answer:

Fofino [41]2 years ago

3 0

That’s hard I’m just typing stuff to get points lol

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2x - m x= 4 m= 2 can you help me because I wanna know what the answer

NeTakaya

Answer:

Step-by-step explanation:

2x-m

When you substitue in the values for x and m:

2(4)-2

Now you can solve the equation:

2(4)-2

8-2

So this leads to the answer

2x-m=6 or 2(4)-2=6

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2 years ago

please help! functions and relations. f(x)= square root of x-4. find the inverse of f(x) and it’s domain.

likoan [24]

ANSWER:

$\:D.\text{ }f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge-4$

STEP-BY-STEP EXPLANATION:

We have the following equation:

$f(x)=\sqrt{x}-4$

The inverse is the following (we calculate it by replacing f(x) by x and x by f(x)):

$\begin{gathered} x=\sqrt{f^{-1}(x)}-4 \\ \\ \sqrt{f^{-1}(x)}=x+4 \\ \\ f^{-1}(x)=(x+4)^2 \end{gathered}$

The domain would be the range of the original equation, and it would be the range of values that f(x) could take, which was from -4 to positive infinity, that is, f(x) ≥ -4.

Therefore, the domain is x ≥ -4.

So the correct answer is D.

$\:f^{-1}\left(x\right)=\left(x+4\right)^2;x\ge -4$

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An introduction to equations x-3=10

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Answer:

x - 3 = 10

x = 13 is the solution

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Ten times as much as 3000

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