All categories

3 years ago

Which correctly describes the roots of the following cubic equation x^3-5x^2+3x+9=0?

Mathematics

1 answer:

Bad White [126]3 years ago

8 0

Answer:

C) Three real roots, two of which are equal in value is the right answer I believe.

Step-by-step explanation:

You might be interested in

Joley is opening her first checking account as a teenager. She doesn’t have a job, so most of the income will be presents from b

Stella [2.4K]

The answer is A. The reason for this is because 2% of $300 is $6. Since 6 is less than 8, the answer is A.

3 0

2 years ago

Dina and Masha start cycling on a 20 km bike path at the same time. When Dina reaches the end of the path, Masha still has 4 km

sammy [17]

Answer:

0.5 hour

Step-by-step explanation:

Given

Speed of Dina = 10 km/h

Distance = 20 km

So the time Dina taken to complete the track is:

$Speed=\frac{distance}{time}\\10=\frac{20}{time}\\time=\frac{20}{10}\\ time=2\ hours$

The time taken by Dina is 2 hours. As masha started with dina but she was 4 km of the path left to cycle,

her distance covered in 2 hours was:

$Distance\ covered\ by\ Masha\ in\ 2\ hours=20-4\\=16 km$

So we know the time and distance:

Now,

$Speed\ of\ Masha=\frac{distance}{time}\\ =\frac{16}{2}\\ =8\ kilometer\ per\ hour$

We have to calculate the time that will be needed by MAsha to complete the track:

As we know the speed and remaining distance

$Speed=\frac{distance}{time}\\8=\frac{4}{time}\\ time=\frac{4}{8}\\time=0.5\ hours$

Masha needs 0.5 hour to complete the track ..

7 0

3 years ago

Read 2 more answers

Define powers provide an example of power with an exponent of 2

shtirl [24]

Well not sure what you are asking, but If it is what I think it is, it would go like this:
2
(9^2)

Then the answer should be

9^4 since we multiply the exponents.

If you mean this...

3^2....It would be same as 3 x 3 which we should know is equal to nine.

Hope I helped! (Be sure to thank me!)

7 0

3 years ago

Read 2 more answers

Idek what to do, help

stepladder [879]

Distribute the 5 to the (2+y). Parenthisis always come first. after that combine the 5y and the -y. you should end up with 2-(+4y) +2. add the -2 and +2. you should be left with 4y

8 0

3 years ago

Given that p(x) is a polynomial in 2 and a € R. If (x – a) is a factor of p(I), then p(a) must be

coldgirl [10]

C. Zero is the correct answer

6 0

3 years ago