All categories

3 years ago

Which function is a quadratic function? c(x) = 6x + 3x3 d(x) = x – 8x4 p(x) = –5x – x2 k(x) = 2x2 + 9x4

2 answers:

6 0

Quadratic means 2nd degree

means highest power of variable is 2

c(x)=6x+3x^3
3rd degree, not quadratic

d(x)=x-8x^4,
4th degree, not quadratic

p(x)=-5x-x^2
2nd degree, it's quadratic

k(x)=2x^2+9x^4
4th degree, not quadratic

answer is $p(x)=-5x-x^2$

nata0808 [166]3 years ago

5 0

Answer:

option 3 my dudes.

You might be interested in

What is an example of when you would want consistent data and, therefore, a small standard deviation?

steposvetlana [31]

Answer:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

Step-by-step explanation:

For example if we have the following data:

12.1, 12.3,12.4,12.5,12.3,12.1,12.2

We see that the data are similar for all the observations so we would expect a small standard deviation

If we calculate the sample mean we can use the following formula:

$\bar X=\frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{12.1+12.3+12.4+12.5+12.3+12.1+12.2}{7}=12.271$

And for the standard deviation we can use the following formula:

$s= \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

And after replace we got:

$s = 0.1496$

And as we can ee we got a small value for the deviation <1 on this case.

8 0

3 years ago

Three brothers share 2 sandwiches equaly. how much of sandwich does brother get?

Pachacha [2.7K]

They must split one with the ,2 bros and the other one gets a whole one I think let me check.......

3 0

3 years ago

Read 2 more answers

Please help me GENIUS Rank

riadik2000 [5.3K]

<h2>Hey there!</h2>

<h3>Here's your required mode </h3>

<h3>Refer to the image above </h3>

<h3>And btw,in the earlier question I've done for mean also you can check that again which I've answered earlier. </h3>

<h2>Hope it helps</h2>

4 0

2 years ago

HELP ASAP use ANSWERS GIVEN WITH QUESTION!!!!!!!!!!!!

anastassius [24]

Answer:

ok ill try my best

Step-by-step explanation:

1. 1/36

2.1/18

3. 25/36

4. 5/18

hope this helps

5 0

3 years ago

Did Leonardo de Vinci invent the scissors ?

icang [17]

Answer: Many people mistakenly give credit to Leonardo da Vinci for inventing scissors. Although da Vinci was brilliant, scissors were around for a long time before him. Some historians believe scissors were invented in the Middle East as long as 3,000-4,000 years ago.

Step-by-step explanation: Leonardo da Vinci

Scissors of the kind used today are believed to have been first made in 1 A.D in Rome. Some historians believe that Leonardo da Vinci is the inventor, for he had used it for cutting canvas. Although this view has not been widely accepted, Da Vinci helped to spread the popularity of scissors.

Hope this helps^^

5 0

3 years ago

Read 2 more answers