1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Brrunno [24]
3 years ago
8

What are the real or imaginary solutions of each polynomial equation?

Mathematics
1 answer:
Semmy [17]3 years ago
6 0
1) a
2) c

#1 explanation:

x^4-20x^2=-64
x^4-20x^2+64=0
(find a number that multiplies to the last number aka 64 and adds up to b aka 20)
((x-4)(x-16))^2
x= -2,2,-4,4

same for #2 w different variable and numbers


You might be interested in
Need help to write equations for 5, 6 & 7
Softa [21]
6)
A quadratic function has the form
y = ax^2 + bx + c

Use point (3, 5) in the equation above:

5 = a(3^2) + 3b + c
5 = 9a + 3b + c
9a + 3b + c = 5     Equation 1

Use point (4, 3) in the equation above:

3 = a(4^2) + 4b + c
16a + 4b + c = 3    Equation 2

Use point (5, 3) in the equation above.

5 = a(5^2) + 5b + c
25a + 5b + c = 5       Equation 3.

Now solve the system of equations of equations 1, 2, and 3 to find the coefficients, a, b, and c.

9a + 3b + c = 5
16a + 4b + c = 3
25a + 5b + c = 5

Subtract the first equation from the second equation.
Subtract the second equation from the third equation.
You get
7a + b = -2
9a + b = 2

Subtract the first equation above from the second equation to get.
2a = 4
a = 2

Substitute:
7a + b = -2
7(2) + b = -2
b = -16

9a + 3b + c = 5
9(2) + 3(-16) + c = 5
18 - 48 + c = 5
c - 30 = 5
c = 35

The equation in standard form is

y = 2x^2 - 16x + 35

We can find it in vertex form:

y = 2(x^2 - 8x) + 35

y = 2(x^2 - 8x + 16) + 35 - 32

y = 2(x - 4)^2 + 3
3 0
3 years ago
Question 2 (6 points)
alexdok [17]

Answer:

here

Step-by-step explanation:

it is basically a sector , use the area formula i.e.  

[(theta)/360]*πr^2

4 0
3 years ago
Can someone help me on this math question its confusing ill give brainly when right!!!
notsponge [240]

\huge\mathsf\green{ANSWER}:—

The coefficients are:-

-4,-6

<h2>hope it would be helpful for you</h2>
7 0
3 years ago
Read 2 more answers
Date whenever the following is true or false k+8&gt;19, if k=11​
alexdok [17]

Answer:

The Answer is True

Step-by-step explanation:

k+8>19

k>19-8

k>11

4 0
3 years ago
It costs 9.95 for 1 ticket to the movies. If 3 people go, how much would the total price of 3 tickets be?
SIZIF [17.4K]

It would be $9.95 x 3

4 0
3 years ago
Other questions:
  • What is x squared = 196<br> Explain steps please
    11·1 answer
  • Jason is a used-car salesman who sells domestic and foreign cars. He earns $7,000 for each domestic car sold and loses $3,500 fo
    9·1 answer
  • Use your estimation skills to place each of the following onto the number line.
    7·1 answer
  • How many points need to be removed from this graph so
    15·1 answer
  • Use the slope of the given line to construct a parallel line
    13·2 answers
  • Thomas, a very talented builder, was putting a fence in the play area in his yard for his dogs. If he wants it to be square, and
    13·1 answer
  • Matrices A and B shown below are equal.
    7·1 answer
  • Ben gets 5 more presents than his naughty little sister Gwen this holiday season. If together they receive 21 presents, how many
    14·1 answer
  • How many 3s go into 8679
    9·2 answers
  • 25x - 80 = 120 cant figure this i need help please
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!