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Lilit [14]
2 years ago
13

If f (x) = x2 + 4x-12. find f(2).

Mathematics
1 answer:
Otrada [13]2 years ago
6 0

Answer:

f=  x^2+4x−12 /x

Step-by-step explanation:

Step 1: Divide both sides by x.

fx /x  =  x^2+4x−12 /x

f=  x^2+4x−12 /x

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What is the sign of −4ab when a>0 and b<0?
AVprozaik [17]

Answer:

A

Step-by-step explanation:

We have the expression:

-4ab

And we want to find its sign given that a>0 and b<0.

Notice that the expression is already negative since we have -4.

a>0 means that a is positive. Therefore, we can ignore it since it won’t do anything.

b<0 means that b is negative. Therefore, we will have two negatives being multiplied together. Hence, this will make a positive.

Therefore, the sign of our expression will be positive.

We can see this with an example. Let a=1 (1>0) and let b=-1 (-1<0). Then:

-4(1)(-1)=4

So, the sign is positive.

Hence, the answer is A.

7 0
3 years ago
In the equation y= -x/4, what is the unit rate?
maria [59]
The unit rate is -1/4.
8 0
3 years ago
I NEED HELP FAST ON #6 PLEASE HELP!
Advocard [28]

Answer:

money owed (in order): $850, $870.40, $891.29, $912.68

Step-by-step explanation:

The formula is

money owed = amount owed the previous week + amount owed previous week × interest rate (in decimal form)

so thats:

money owed = amount owed the previous week + amount owed previous week × 0.024

we can simplify that to:

money owed = amount owed the previous week x (1.024)

after 0 weeks:

$850 (just started, no interest added)

after 1 week:

$870.40

after 2 weeks:

$891.29

after 3 weeks:

$912.68

4 0
3 years ago
Function or no a function
marishachu [46]

Answer:

Not a function

Step-by-step explanation:

If it was a function there should be only one values for every x, in this case there is two values for x=0. Doesn't pass the vertical test.

7 0
3 years ago
Read 2 more answers
Solve the equation using either guess-check-and-improve or backtracking.
Dvinal [7]
I think the answer is D. If I’m wrong sorry
3 0
3 years ago
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