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3 years ago

How many real and complex roots exists for a polynomial?

Mathematics

1 answer:

solmaris [256]3 years ago

7 0

Step-by-step explanation:

whenever a complex number is a root of a polynomial with real coefficients, its complex conjugate is also a root of that polynomial. as an example, we'll find the roots of the polynomial..

x^5 - x^4 + x^3 - x^2 - 12x + 12.

the fifth-degree polynomial does indeed have five roots; three real, and two complex.

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Which linear function represents the line given by the point-slope equation y-8=

Nina [5.8K]

Answer:

$f(x)=x+4$

Step-by-step explanation:

we have

$y-8=(x-4)$

This is the equation of the line in point slope form

where

The slope is m=1

The point is (4,8)

Convert to slope intercept form

Isolate the variable y

Adds 8 both sides

$y-8+8=x-4+8$

Combine like terms

$y=x+4$

Convert to function notation

$f(x)=x+4$

5 0

3 years ago

One of the psychologist's findings is that 18 months after the workshop, a sample of 49 job seekers who received training on set

IceJOKER [234]

Answer:

The psychologist finds that the estimated Cohen's d is 0.583.

Step-by-step explanation:

The Cohen's d is used to calculate the effect size, appied when a null hypothesis is rejected.

It can be calculated for this case of population mean as:

$d=\dfrac{M-\mu}{\sigma}=\dfrac{6.5-5.8}{1.2}=\dfrac{0.7}{1.2}=0.583$

The psychologist finds that the estimated Cohen's d is 0.583.

8 0

3 years ago

Rhianna's movie collection contains 18 movies, including 8 comedies.

garri49 [273]

The answer would be =4 over 9 =4/9 hope this helps

7 0

3 years ago

Maria plans to rent a boat. The boat rental costs $60

irina1246 [14]

Answer: she can rent a boat or 2 hrs and 30 mins

Step-by-step explanation:

60+10=70

70+60=130

130+60=190

190+30=220

3 0

3 years ago

Read 2 more answers

Do not solve the system below. Its solution is (x, y)

Natalija [7]

Answer:

(x,y) = (1,1)

8 0

3 years ago