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erma4kov [3.2K]
3 years ago
12

Determine all the zeros of p(x)=x^4-9x^2+20

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0

Answer:

ANSWER

Real roots

x=5

x=7

Complex roots

x=2+3–√i≈2.0+1.73205080756888i

x=2−3–√i≈2.0−1.73205080756888i

Step-by-step explanation:

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Need help thanks in advance
wolverine [178]

Answer:

Period = pi

Angular frequency = 2

Amplitude = 5

Midline is the line y = 3

Step-by-step explanation:

A sinusoidal wave is written in the general form as:

f(x) = A*cos(w*x) + C

Where:

- A is the amplitude.

- w is the angular frequency, this is equal to 2*pi/T

  where T is the period.

- y = C is the midline.

Then in the equation:

f(x) = 5*cos(2*x) + 3

- 5 is the amplitude.

- 2 is the angular frequency (in the image is called frequency, but this quantity must be in radians/time, while the normal frequency is only in Hz)

- We know that the angular frequency is equal to 2*pi/T, whit this eqation we can find the period:

2 = 2*pi/T

T = 2*pi/2 = pi

pi is the period.

- y = 3 is the midline.

3 0
3 years ago
Can anybody help me that knows this stuff?
Marysya12 [62]
You have you break it downn like you would order of operations and u should get your answer 
8 0
3 years ago
Find the magnitude and direction of the vector WZ: W(15, 25) and Z(10,-6).
strojnjashka [21]

Answer:

..

Step-by-step explanation:.

7 0
2 years ago
Write an equation for the transformation of y = x.
Ivanshal [37]

Answer:

отлично вы молодец болшая у вас всё правилно

7 0
3 years ago
Alexis says she is thinking about a number whose absolute value is 19. What are the possible numbers she could be thinking of?
Grace [21]

Answer:

I do not understand give a genuine question

4 0
2 years ago
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