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
ratelena [41]
3 years ago
5

How to solve this showing all work ! Also explain why they aren’t polynomials if you can :)

Mathematics
1 answer:
Lesechka [4]3 years ago
7 0

Polynomials are linear combinations of positive integer powers. For example,

x^{100}+30x^2-\sqrt 2\,x+21

is a polynomial, but

-x^{-1}-4x^\pi+x^{3/2}

is not.

(In case you're unfamiliar with the term, a linear combination of two quantities is the sum of scaled versions of those quantities, e.g. a general linear combination of a and b is k_1a+k_2b, where k_1,k_2 are any numbers.)

8x^2-18\sqrt x+5x-3 is not a polynomial; the offending term is -18\sqrt x, or -18x^{1/2}.

You might be interested in
Andre has been practicing his math facts. He can now complete 135 multiplication
Maslowich
A. Andre can answer 1.5 facts per second.
135 : 90

b. Noah can answer 1.25 facts per second.
75 : 60

Andre is working faster.
8 0
3 years ago
How do you solve (3*x) *7
shtirl [24]
3\cdot x\cdot7=21x
6 0
3 years ago
What are the real solutions of the equation x^4= 81?
zmey [24]
Use photomath it’s free
5 0
3 years ago
FUNDRAISER The soccer team collected
Yuliya22 [10]
They have 136 cans left.

175+58-97=?
175+58=233
233-97=136
8 0
3 years ago
The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. Th
ankoles [38]

We have been given that the distribution of the number of daily requests is bell-shaped and has a mean of 38 and a standard deviation of 6. We are asked to find the approximate percentage of lightbulb replacement requests numbering between 38 and 56.

First of all, we will find z-score corresponding to 38 and 56.

z=\frac{x-\mu}{\sigma}

z=\frac{38-38}{6}=\frac{0}{6}=0

Now we will find z-score corresponding to 56.

z=\frac{56-38}{6}=\frac{18}{6}=3

We know that according to Empirical rule approximately 68% data lies with-in standard deviation of mean, approximately 95% data lies within 2 standard deviation of mean and approximately 99.7% data lies within 3 standard deviation of mean that is -3\sigma\text{ to }3\sigma.

We can see that data point 38 is at mean as it's z-score is 0 and z-score of 56 is 3. This means that 56 is 3 standard deviation above mean.

We know that mean is at center of normal distribution curve. So to find percentage of data points 3 SD above mean, we will divide 99.7% by 2.

\frac{99.7\%}{2}=49.85\%

Therefore, approximately 49.85\% of lightbulb replacement requests numbering between 38 and 56.

6 0
3 years ago
Other questions:
  • 26. Identify the property a+(b+c) = (b+c)+a *
    15·1 answer
  • What is the perimeter of triangle ABC?
    5·2 answers
  • Quadrilateral ABCD has diagonals that are congruent and perpendicular to each other. What classification can be given to ABCD?
    13·2 answers
  • Given a population that meets the conditions of a normal distribution, samples taken at random will also be normally distributed
    13·1 answer
  • 3 digit largest number
    5·1 answer
  • Need help with this one, please be sure to show work, thank you!​
    13·1 answer
  • Factor the trinomial.<br><br><br>36n2 – 12n + 1
    12·1 answer
  • PLEASE PROVIDE REASONING AND SHOW WORK TO
    13·1 answer
  • Х
    5·1 answer
  • The photo shows a small coin. The scale from the actual coin to the photo is 8 mm to 2 cm In the photo, the distance across the
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!