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Morgarella [4.7K]

3 years ago

9

Every polynomial function of degree 3 with real coefficients has exactly three real zeros. choose the correct answer below. fals

e true

2 answers:

Vikki [24]3 years ago

8 0

False. It can also have complex number zeroes.

EleoNora [17]3 years ago

7 0

Answer:

False

They can also have one real zero and two complex zeroes.

Step-by-step explanation:

It is false. They can also have complex zeros.

For example.

$(x-3)*(x^{2} + 4x + 5)$

Has one real zero(3), and two complex zeros.

You might be interested in

If f(x) = −5x − 4 and g(x) = -3x - 2, find (f+ g)(x).

SSSSS [86.1K]

Answer:

$(f+g)(x) = -8x-6$

Step-by-step explanation:

We are given the two functions:

$\displaystyle f(x) = -5x - 4 \text{ and } g(x) = -3x - 2$

And we want to find:

$(f+g)(x)$

Recall that this is equivalent to:

$\displaystyle (f+g)(x) = f(x) + g(x)$

Substitute and simplify:

$\displaystyle \begin{aligned} (f+g)(x) &= (-5x-4)+(-3x-2) \\ \\ &= -8x-6 \end{aligned}$

In conclusion:

$(f+g)(x) = -8x-6$

3 0

2 years ago

Which of the symbols correctly relates the two numbers below? Check all that apply. 100 ? 20

Elis [28]

Answer:

>

Step-by-step explanation:

100 is a larger quantity than 20.

Using the <em>is greater than</em> sign shows this relationship between two quantities.

Hope this helps.

-Gumina

3 0

3 years ago

Read 2 more answers

5 - 7k = -4(k + 1) - 3

mojhsa [17]

Answer:

5 - 7k = -4(k + 1) - 3

5 - 7k = -4k - 4 - 3

7k + 4k = - 4 - 3 -5

11k = -12

k = -12/11

~batmans wife dun dun dun...

7 0

3 years ago

Read 2 more answers

Anyone know how to do this?

ycow [4]

Answer:

no

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In TVW if VW is three meters longer than TV, TW is 20 meters shorter than the sum of VW and TV, and the perimeter of TVW is 74 m

Artyom0805 [142]

Answer:

The length of VW is $25\ m$

Step-by-step explanation:

we know that

The perimeter of triangle TVW is equal to

$P=VW+TV+TW$

we have

$P=74\ m$

so

$74=VW+TV+TW$ -----> equation A

$VW=TV+3$ ----> equation B

$TW=(VW+TV)-20$ ----> equation C

substitute equation B in equation C

$TW=(TV+3+TV)-20$

$TW=2TV-17$ ----> equation D

substitute equation B and equation D in equation A

$74=(TV+3)+TV+(2TV-17)$

solve for TV

$74=4TV-14$

$4TV=74+14$

$4TV=88$

$TV=22\ m$

Find the value of VW

$VW=TV+3$ -----> $VW=22+3=25\ m$

Find the value of TW

$TW=2TV-17$ -----> $TW=2(22)-17=27\ m$

6 0

4 years ago