# Identify all real roots of the equation: x^4 - 9x^2 + 20 = 0. please show work

###### Question:

identify all real roots of the equation: x^4 - 9x^2 + 20 = 0. please show work

### What is the wavelength of a wave with a frequency of 200Hz while traveling at 125.5m/s

What is the wavelength of a wave with a frequency of 200Hz while traveling at 125.5m/s...

### I thought I saw Maria and Brett at the game, but her/she and him/ he had their backs to me.​

I thought I saw Maria and Brett at the game, but her/she and him/ he had their backs to me.​...

### Complétez avec l'adjectif interrogatif:Instructions:Follow the given example.Write down only the missing word on the box.Exemple: ........ est votre nom?Réponse: Quel est votre nom?1) ...... est ta couleur préférée?   2) ...... animal vous amiez?   3) ...... langue parlez-vous ?   4) ........ personne tu admires le plus ?   5) Julie a ............ livre?​

Complétez avec l'adjectif interrogatif:Instructions:Follow the given example.Write down only the missing word on the box.Exemple: ........ est votre nom?Réponse: Quel est votre nom?1) ...... est ta couleur préférée?   2) ...... animal vous amiez?   3) ...... langue parlez-vous ?   4...

### Write down the name of the solid.

Write down the name of the solid....

### Put the following in order from smallest to largest: cells, tissues, organ systems, organs

put the following in order from smallest to largest: cells, tissues, organ systems, organs...

### Evaluate: •3x2 - 2(3y + 2x) for x = -2 and y = 5 Help pls,evaluate this expression

Evaluate: •3x2 - 2(3y + 2x) for x = -2 and y = 5 Help pls,evaluate this expression...

### Absorption is the process of transporting nutrients from the small intestine to the ?

Absorption is the process of transporting nutrients from the small intestine to the ?...

### Which inequality is graphed below? + -5 -4 -3 -2 -1, 1 1 2 3 4 12 - 2x + 2

Which inequality is graphed below? + -5 -4 -3 -2 -1, 1 1 2 3 4 12 - 2x + 2...

### A train starting from a railway station and moving with uniform acceleration attains a speed 40km/hr. in 10mins. Find its acceleration?​

a train starting from a railway station and moving with uniform acceleration attains a speed 40km/hr. in 10mins. Find its acceleration?​...

### Rembrandt's mature works, such as the return of the prodigal son, differ from the religious art of italy and flanders in their ______________.

Rembrandt's mature works, such as the return of the prodigal son, differ from the religious art of italy and flanders in their ______________....

### Quick someone make me a poem with these words please and thank you p.s use 3 words that's in the picture​

quick someone make me a poem with these words please and thank you p.s use 3 words that's in the picture​...

### Madame, comment vous appelez-vous? _______ Je m'appelle Colette Ancelin, et je suis Française. A. Quelle est ta nationalité? B. Quelle est la nationalité de Madame? C. Quelle est votre nationalité? D. Quelle est ta nationalité, Madame?

Madame, comment vous appelez-vous? _______ Je m'appelle Colette Ancelin, et je suis Française. A. Quelle est ta nationalité? B. Quelle est la nationalité de Madame? C. Quelle est votre nationalité? D. Quelle est ta nationalité, Madame?...

### AM GIVING 20 POINTS! What is -6/7 x (-5/4)?

AM GIVING 20 POINTS! What is -6/7 x (-5/4)?...

### Which statement best describes perigee? A) The closest point in Earth's orbit of the Sun. B) The farthest point in the Moon's orbit to Earth. C) The Sun's orbit that is closest to the Moon. D) The closet point in the Moon's orbit to Earth

Which statement best describes perigee? A) The closest point in Earth's orbit of the Sun. B) The farthest point in the Moon's orbit to Earth. C) The Sun's orbit that is closest to the Moon. D) The closet point in the Moon's orbit to Earth...

### Solve for variable and explain each step: 6x-3=15​

solve for variable and explain each step: 6x-3=15​...

### The maximum number of dots an electron dot diagram can have is

The maximum number of dots an electron dot diagram can have is...

### What is one benefit of home based child care centers

What is one benefit of home based child care centers...

### 8. There are 4,800 plastic spoons in a case. There are 6 boxes of spoons in each case. How many spoons are in each box?

8. There are 4,800 plastic spoons in a case. There are 6 boxes of spoons in each case. How many spoons are in each box?...