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
olga nikolaevna [1]
2 years ago
10

Graph the function f(x) = x3 – 4x – 1. Which are approximate solutions for x when f(x) = 0? Check all that apply. –2.11 –1.86 –0

.25 0.25 1.86 2.11

Mathematics
2 answers:
kkurt [141]2 years ago
7 0
The solutions to this will be found where the graph goes through the x-axis...when y = 0.  Since f(x) and "y =" are interchangeable, this makes sense.  When you graph it and use your "trace" button you will find that the solutions are -1.8608, -.254102, and 2.11491
Anna35 [415]2 years ago
6 0

Answer:

-1.86, -0.25 and 2.11

Step-by-step explanation:

In the figure  attached a plot of the function is shown. The solutions for x when f(x) = 0 are also given.

To check if a given x is solution of f(x) = 0, just replace x value in the formula and verify if the function is or not equal to zero.

x           f(x)

-2.11      (-2.11)^3 - 4(-2.11) -1 = -1.95

-1.86     (-1.86)^3 - 4(-1.86) -1 ≅ 0

-0.25    (-0.25)^3 - 4(-0.25) -1 ≅ 0

0.25     (0.25)^3 - 4(0.25) -1 = -1.98

1.86      (1.86)^3 - 4(1.86) -1 = -2

2.11       (2.11)^3 - 4(2.11) -1 ≅ 0

Therefore, the solutions are: -1.86, -0.25 and 2.11

You might be interested in
What is the variable number in the equation 6=4+2s
Savatey [412]

Answer:

I believe it is 2s

Step-by-step explanation:

a variable is a symbol which functions as a placeholder, so in this case, the placeholder is "s"

8 0
2 years ago
Simplify (6 + 8i) (4 - 7i)
erica [24]
The answer is 80-10i
8 0
2 years ago
Read 2 more answers
Which expression is equivalent to 6(4v)?
riadik2000 [5.3K]

Answer:

24v

Step-by-step explanation:

simply multiply perform the distributive property. so multiply 6 and 4 and you should get 24. after just add in the v.

pls mark brainlest

5 0
2 years ago
Read 2 more answers
Rose pls. answer me if ur still on
Vsevolod [243]

Answer:

Step-by-step explanation:

rose answer this person he/she is trying to look for you.

8 0
2 years ago
Read 2 more answers
In the rhombus, angle 1 = 10x, angle 2 = x + y, and angle 3 = 15z. Find the value of each variable. 2 1​
cupoosta [38]

The values of the variables x, y and z are; 9, 81 and 6 respectively

<h3>Rhombus Diagonals</h3>

According to the question;

  • All sides of the Rhombus are equal.

Hence, the Diagonals of the Rhombus are perpendicular bisectors of each other.

Therefore,

Angles 1, 2 and 3 are all equal to 90°, so that we have;

  • 10x = 90°

x = 9°

  • x + y = 90, where x=9

  • 9 + y = 90

y = 81°

  • 15z = 90

z = 6°

Read more on Rhombus Diagonals;

brainly.com/question/20627264

8 0
2 years ago
Other questions:
  • it takes Henry 10 oranges to make a large glass of orange juice which is 5 times as many as he uses for a small glass how many o
    14·2 answers
  • What is 24/36 simplified?
    8·2 answers
  • Solve the equation -10=-6+2c
    9·2 answers
  • 5(g+8)-7=103<br>what's the answer?
    14·2 answers
  • What is the median of this set of data?<br> 1, 2, 5, 6,9
    14·1 answer
  • A 123​-inch pipe is cut into two pieces. One piece is two times the length of the other. Find the length of the shorter piece.
    8·1 answer
  • Joey has $400 in a bank account that earns 8% in annual interest. Would this equation be Linear or Exponential?
    5·1 answer
  • Pls help me i will make u a brainest
    8·1 answer
  • I’m struggling bad! If you need a better pic I can
    9·1 answer
  • Identify the equation of the line perpendicular to 9x - 3y = 18.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!