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2 years ago

Find f(3)... if f(x)=x^4+2x^2-1

Mathematics

2 answers:

Bogdan [553]2 years ago

6 0

Just substitute 3 for every X value (3)^4+2(3)^2-1 it will give you 98

Marrrta [24]2 years ago

6 0

For this case we have the following function:

$f (x) = x ^ 4 + 2x ^ 2-1$

What we must do is evaluate the value of x = 3 in the given function.

We have then:

$f (3) = (3) ^ 4 + 2 (3) ^ 2-1$

Then, Rewriting the function we have:

$f (3) = (3) ^ 4 + 2 (3) ^ 2-1$

$f (3) = 81 + 18-1$

$f (3) = 98$

Answer:

The value of the function evaluated for x = 3 is given by:

$f (3) = 98$

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Answer:

As few as just over 345 minutes (23×15) or as many as just under 375 minutes (25×15).

Imagine a simpler problem: the bell has rung just two times since Ms. Johnson went into her office. How long has Ms. Johnson been in her office? It could be almost as short as just 15 minutes (1×15), if Ms. Johnson went into her office just before the bell rang the first time, and the bell has just rung again for the second time.

Or it could be almost as long as 45 minutes (3×15), if Ms. Johnson went into her office just after the bells rang, and then 15 minutes later the bells rang for the first time, and then 15 minutes after that the bells rang for the second time, and now it’s been 15 minutes after that.

So if the bells have run two times since Ms. Johnson went into her office, she could have been there between 15 minutes and 45 minutes. The same logic applies to the case where the bells have rung 24 times—it could have been any duration between 345 and 375 minutes since the moment we started paying attention to the bells!

Step-by-step explanation:

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2 years ago

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The solution to the problem is as follows:

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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2 years ago

Ross chose a card at random from a deck of 52 cards. Ross replaced the card and then chose a second card. What is the probabilit

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Answer:

$\frac{1}{208}$

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Now let us find probability of getting the ace of spades.

$\text{ Probability of getting ace of spades}=\frac{1}{52}$

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$\text{ Probability of getting a club and then ace of spades}=\frac{1}{4}*\frac{1}{52}=\frac{1}{208}$

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2 years ago