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
miss Akunina [59]
2 years ago
13

Steps are very much required they should be clear and neat please i need to understand this I'm taking a practice test for my fu

ture sats
ill report in inappropriate answers

Mathematics
1 answer:
Volgvan2 years ago
8 0

Answer:

2nd option

Step-by-step explanation:

the mean is calculated as

mean = \frac{sum}{count}

         = \frac{4x+5+7x-6-8x+2}{3}

         = \frac{3x+1}{3}

         = \frac{3x}{3} + \frac{1}{3}

        = x + \frac{1}{3}

You might be interested in
Find x step by step (10 points)
AleksandrR [38]

Answer:

\sqrt{(n-m)(n+m)} & -\sqrt{(n-m)(n+m)}

Step-by-step explanation:

1) Subtract m^{2} from both sides. This should leave you with x^{2}=n^{2}-m^{2}.

2) Square root both sides. This should leave you with x=\sqrt{n^2-m^2} & x=-\sqrt{n^2-m^2}.

<em>You can stop here if this is what the problem is asking for. However, it is not fully simplified.</em>

<em />

3) Factor the equation. This should leave you with \sqrt{(n-m)(n+m)} & -\sqrt{(n-m)(n+m)}.

4 0
3 years ago
Read 2 more answers
A regular hexagon is inscribed in a circle as shown determine the measure of FE
Ostrovityanka [42]
The complete question in the attached figure

we know that
1) <span>The triangles that are formed in the hexagon by joining all the vertices with the center of the hexagon are all equilateral and are equal in size
therefore
the radius of the circle is equals to the length side of the regular hexagon
FE=BP--------> FE=6 cm

the answer is
FE=6 cm </span>

3 0
3 years ago
Read 2 more answers
A research article reports the results of a new drug test. The drug is to be used to decrease vision loss in people with Macular
Brilliant_brown [7]

Answer:

A. Valid

Step-by-step explanation:

The P-value is the probability of getting this result or sample statistic if the null  hypothesis is true. That is why a low P-value (smaller than the significance level) is considered evidence to reject the null hypothesis, because the result has little probability of being due to chance.

The statement that the P-value is "the probability of getting results as extreme as or more extreme than the ones in this study if the drug is actually not effective" is valid, as the null hypothesis states generally the opposite of the objective of the study (demonstrate that the drug is effective), and the very low value of the P-value is indicative that this result, if the drug was not effective, has a very low probability.

7 0
3 years ago
The line plot below shows the weight of each of 15 ostrich eggs . What is the total weight of the 3 heaviest eggs
erica [24]

Answer:

D). 6 3/4

Step-by-step explanation:

Given,

The three eggs with the heaviest weights are;

2\frac{1}{2} ounces

2\frac{1}{4} ounces, &

2 ounces

To find,

The total weight of the three heaviest eggs = 2\frac{1}{2} ounces + 2\frac{1}{4} ounces + 2 ounces

= 5/2 + 9/4 + 2/1

Taking the L.C.M. of 2, 4, and 1,

= 10/4 + 9/4 + 8/4

= (10 + 9 + 8)/4

= 27/4 or 6 3/4

4 0
3 years ago
Can some one help me on 11 Please
AlexFokin [52]
This is true because 2/5 = 4/10
If u gave 1/10 of a pizza to 6 friends then you would have given them 6/10 of your pizza and have 4/10 left over because 4/10 + 6/10 = 10/10 or 1
Hope this helped :)
6 0
3 years ago
Other questions:
  • 6xyz = P ;y<br> please help!!!
    5·1 answer
  • A survey shows that 67% of peanut butter lovers prefer chunky-style. Out of 850 people surveys, how many can be predicted to say
    12·2 answers
  • Circle the numbers divisible by 2.<br><br>320;5,763; 9,308; 5,857;3,219; 5,656; 83,001;53,634​
    11·1 answer
  • What is the verbal expression for 4q ?
    14·1 answer
  • If m∠ATB = 20°, m∠BTD = 72°, and m∠CTD = 38°, what is m∠ATC?
    13·1 answer
  • Draw a triangle with verticesA(0,4),B(2,-2),andC(-2,-2).
    13·1 answer
  • ‼️⚠️ANSWER QUICK PLEASE⚠️‼️
    11·2 answers
  • An episode of the television show, Legend of the Far Mountain, normally lasts 30 minutes and has 8 minutes of commercials. Tonig
    13·2 answers
  • Is the following relation a function?
    14·2 answers
  • I needed to write something long enough
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!