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
ivanzaharov [21]
4 years ago
7

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root.

Mathematics
2 answers:
Archy [21]4 years ago
8 0

Answer:

ok no cap

Step-by-step explanation:

lutik1710 [3]4 years ago
7 0
The first one is of order 5, so it has either 1, 3 or 5 real roots (unless any coefficent was complex). Proof complete :)
The other one, if it has a solution, it must be in [-1;1]. Because it only gives positive results the solution is further restricted to [0;1]. Because the cosine function is continuous and strictly decreasing on this interval, the difference of x and it's cosine will shrink up to some point within the interval where it gets to 0 (the solution) and then flips sign (the cosine gets less than the number), further decreasing until the end of the interval.
You might be interested in
Please help, I need an answer.
Harrizon [31]

Answer:

y=-1/3x-11/3

(Not sure what point slope form is, but this is the equation for the points)

6 0
3 years ago
Ill give branliest please, please, please help
mel-nik [20]
(6,-9) bc downwards means (-) so -3-6=-9 
8 0
3 years ago
Read 2 more answers
Change the subject of the equation v = u + at to a.
emmasim [6.3K]
<h3>Answer ↓</h3>

<h3>Calculations ↓</h3>

In order to make a the subject of this equation , we need to get a by itself .

The current equation is :

v = u + at

Subtract u on both sides :

v-u=at

Now, divide by t on both sides :

v-u/t=a

<h3>So the formula looks like ↓</h3>

\boxed{\\\begin{minipage}{3cm}Equation \\ a=$\displaystyle\frac{v-u}{t} $ \\ \end{minipage}}

hope helpful ~

8 0
3 years ago
Given the following definitions: U = {1, 2, 3, 4, 5, 6, 7} A = {1, 2, 4, 5} B = {1, 3, 5, 7} How many elements are in A' ∪ B ?
atroni [7]

Answer:

A'∪B has no elements in it

Step-by-step explanation:

6 0
3 years ago
What is 38.97 as a fraction?
Bingel [31]

Answer:

Hi there!

The Answer to this question is: 3897/100

5 0
3 years ago
Other questions:
  • The center on a target has a diameter of 7 inches. The whole target has a diameter of 35 inches. Complete the explanation for wh
    7·1 answer
  • Analyze the diagram below and complete the instructions that follow.
    5·2 answers
  • How to multiply fractions and decimal
    6·2 answers
  • A triangle has one angle that measures 26 degrees, one angle that measures 116 degrees, and one angle that measures 38 degrees.
    5·2 answers
  • Show that sin (30°) = 1/2
    14·1 answer
  • Write each number in scientific notation
    5·1 answer
  • Find the remainder when x³ - ax² + 6x - a is divided by x - a​
    7·1 answer
  • Explain whether this dilation is an enlargement or a reduction, and how you know. Triangle A B C is enlarged to triangle A prime
    7·2 answers
  • Please help. Will give brainliest.
    5·1 answer
  • How much is Two thirds of... (2/3)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!