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
Oksanka [162]
3 years ago
9

Please help! 50 point reward and brainliest to best answer

Mathematics
2 answers:
blondinia [14]3 years ago
8 0

Answer:

how can you create a data set with 7 numbers if there are already 7 for the mode

Step-by-step explanation:

And also we cant really answer this for you because we cannot draw on this and we can't make a data set by typing although it would be more better if we could draw to show explanations

Serga [27]3 years ago
6 0

Answer: Wow this seems very tough I have no clue I just know you need more 7's than any other number.

You might be interested in
Find all the zeros of the equation x^4-6x^2-7x-6=0 Explain please.
Alina [70]
<h3>Answer:</h3>
  • zeros are {-2, 3, (-1±i√3)/2}
<h3>Step-by-step explanation:</h3>

I like to look at a graph of the function to see where the zeros might be. Here, there are x-intercepts at x=-2 and x=3. These can be factored out using synthetic division to find the factorization to be ...

... (x +2)(x -3)(x² +x +1) = 0

By completing the square, using the quadratic formula, or by looking at the graph of it, the complex roots of the quadratic factor can be found to be ...

... x = (-1 ±i√3)/2

_____

The second attachment shows my synthetic division. The first division takes out the root x=3 to give a quotient of x³ +3x² +3x +2. The second division takes out the root -2 to give the quotient of x² +x +1. (You can see that I tried -1 as a root first.)

The graph shows both the quartic and the quadratic factor of it. The latter has a leading coefficient of 1 and a vertex at (-1/2, 3/4), so you know the complex roots are -1/2 ±i√(3/4).

_____

<em>From the beginning</em>

There is only a very complicated formula for the roots of a quartic equation, so these are usually solved by machine or by some form of trial and error (iteration). There are some helps, like Descarte's Rule of Signs, and the Rational Root theorem.

Here, the former looks at the one sign change in the coefficients to tell you there will be 1 positive real root. Changing the sign of the odd-degree terms makes there be 3 sign changes, so there will be 3 or 1 negative real roots. Thus, we're assured at least two real roots, one of each sign.

We can look at the constant term to find the y-intercept to be -6. We can add the coefficients to find the value of the function is -18 for x=1, so the positive real root is larger than 1.

The Rational Root theorem says any rational roots will be factors of 6, the constant term. Choices are 1, 2, 3, 6. We have already eliminated 1 as a possibility, and we consider it unlikely that 6 will be a root. (The 4th power overwhelms the other terms in the function.) We tried 2 and found it doesn't work (this was before we graphed the function). The attached division result shows that 3 is a root, as does the graph.

Once you get down to a quadratic, you can find the remaining roots in the usual way. Because it is so simple to read them from the graph, we decided to graph the quadratic factor.

_____

<em>Comment on terminology</em>

"root" and "zero" are essentially the same thing when the function is equated to zero, as here. The terms refer to the value(s) of x that make the polynomial function evaluate to zero.

8 0
3 years ago
What is the surface area in square inches of a cube with a side 7<br> inches long?<br> 10
SVETLANKA909090 [29]

Answer:

28

Step-by-step explanation:

7x4

5 0
2 years ago
Read 2 more answers
Helppp me pls what is : 56× 3/4 =​
Dennis_Churaev [7]

Answer:

I believe its 42

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If A(2,4) is reflected over the x-axis, what are it’s new coordinates ?
OverLord2011 [107]
(2,-4) is new reflected coordinates

6 0
2 years ago
What is the image of (7, -3) after a reflection over the x-axis?
telo118 [61]

Answer:(7,3)

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • In 15 and 16, use the expression 1 + z/3 + 2w
    9·1 answer
  • Using the following Venn Diagram what is the probability of selecting a letter that is neither blue nor red?
    13·1 answer
  • I need help with this math problem
    7·1 answer
  • What are four consecutive integers whose sum is 682
    15·2 answers
  • Solve for m 11m − 10m = 14
    8·1 answer
  • WORTH LOT OF POINTS DONT PLAGERIZE NO FAKE ANSWERS WILLL REPORT::::: Mindy understands how to tell if ordered pairs are function
    12·1 answer
  • One angle of a triangle measures 95°. The other two angles are in a ratio of 4:13. What are the measures of those two angles?
    8·1 answer
  • I need help with geomtrí​
    11·1 answer
  • Find the mid-point of<br> (-2, 1, 4), (7, 3, -1)
    10·1 answer
  • What is the value of 10x+1 3
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!