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3 years ago

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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Which describes the rotation that took place?

kaheart [24]

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3 0

3 years ago

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leva [86]

B . -5\6 + 1\5 = -41\6

Step-by-step explanation:

cross multiple 5×5= 25 ;6×1=6;25÷6=41\6

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:

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