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icang [17]
2 years ago
5

For the function: f(x) = 18 − x − x2 Find f(9)

Mathematics
1 answer:
Nana76 [90]2 years ago
4 0
F(9) = 18-9-(9)^2

=> f(9) = 18-91-81

=> f(9) = -153
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Two is a zero of the equation x^3−x^2−14x+24=0.
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Answer:

The factored form is equivalent to the given equation is (x - 2) (x - 3) (x + 4).

Step-by-step explanation:

Since 2 is a zero of the equation x^{3} - x^{2} -14x + 24 = 0

Therefore, (x - 2) is a factor of the equation x^{3} - x^{2} -14x + 24 = 0

Now, on dividing x^{3} - x^{2} -14x + 24 = 0 by (x - 2) we get,

(x - 2) (x^{2} + x - 12) as shown in Fig(1)

On factorising x² + x - 12

= x² + x - 12

=  x² + 4x - 3x - 12

= x (x + 4) - 3 (x + 4)

= (x - 3) (x + 4)

Now, (x - 2) (x^{2} + x - 12) = (x - 2) (x -3) (x + 4)

So the factored form is equivalent to the given equation is (x - 2) (x - 3) (x + 4). Therefore option (c) is the correct answer.

           

       

                 

3 0
3 years ago
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Katyanochek1 [597]

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B, You can build your credit history

Step-by-step explanation:

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3 years ago
Rew wants to go to the batting cage. it costs $1.25 to hit per round. which equation can be used to represent how many rounds dr
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This equation will work out how many rounds Drew can hit if the cost if $1.25 and he has $20.
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Answer:

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Step-by-step explanation:

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yep

answer is this is linear
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