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Olenka [21]
3 years ago
6

How many roots does y=x5−4x2+3x have?

Mathematics
1 answer:
VashaNatasha [74]3 years ago
8 0

Answer:

5 roots (answer C)

Step-by-step explanation:

Any polynomial should have in the Complex Number System, as many roots as the polynomial's degree.

In our case, since we are dealing with a polynomial of order 5 (degree 5), it should have 5 roots in the Complex Number System.

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leva [86]
  • B . -5\6 + 1\5 = -41\6

Step-by-step explanation:

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3 0
3 years ago
The perimeter of Δ ABC is 450 ft. If AB= 9x, BC=41x and CA=40x, what is the area of the triangle?
Nikolay [14]

Answer:

A = 4500 ft^2

Step-by-step explanation:

By definition:

The pre-meter P of a triangle ABC is equal to the sum of the length of its sides.

We know that:

P = 450\ ft\\AB = 9x\\BC = 41x\\CA = 40x

The perimeter is:

P = AB + BC + CA\\P = 450 = 9x + 41x + 40x\\90x = 450\\x = 5

Now we find the length of the sides:

AB = 45\\BC = 205\\CA = 200

Once the length of the sides is known, we use Heron's formula to calculate the area.

First I find the semiperimeter S.

S = 0.5(45 + 205 +200)\\S = 225

Then the Area is:

A = \sqrt{s(s-AB)(s-BC)(s-CA)}\\\\A = \sqrt{225(225-45)(225-205)(225-200)}\\\\A = 4500\ ft^2

5 0
4 years ago
HELP. Pleaseee. I have no idea what this means.
Vilka [71]

Answer:

2

Step-by-step explanation:

roots are the intercepts at the x axis I believe

8 0
3 years ago
20 points: please help me
ki77a [65]

Answer:

0...because before it doesn't have an x2 term....

3 0
4 years ago
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