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
mestny [16]
2 years ago
9

Anyone I need help with this problem plss

Mathematics
1 answer:
Nady [450]2 years ago
3 0

Answer:

About 1.23 standard deviation above the mean

Step-by-step explanation:

From what we have here, we need to calculate the difference between the given value and the mean and divide by the standard deviation

That would be through calculating the z score as follows;

z-score = (x - mean)/SD

where x is the given value

z-score = (87-71)/13 = 1.23

Since the score is bigger than the mean, the correct choice here is that the score is about 1.23 standard deviation above the mean

You might be interested in
Find the perimeter of a rectangle that has a length of 2x +7 and a width of 5x.
Harlamova29_29 [7]

Answer:

14x + 14

Step-by-step explanation:

Perimeter = 2( L + W)

2(2x+7 + 5x) = 2(7x + 7)

distributive property

= 14x + 14

3 0
3 years ago
Read 2 more answers
Evaluate the expression 4(2x + 3) + 2(x + 1)-7
Svetlanka [38]
4 (2x + 3) + 2 (x + 1) - 7

8x + 12 + 2x +  2 - 7

10x + 7

10x = -7
10x/10 = -7/10

x = -7/10

hope this helps


4 0
3 years ago
HELP BY FIVE MINUTES PLEASE
kati45 [8]
Those are adjacent angles. They equal 180 degrees. 

10x-20+6x+8= 180

16x-12=180

Add 12.

16x= 192

x=12

I hope this helps!
~kaikers
6 0
3 years ago
Read 2 more answers
Solve using elimination. <br> 2x + y = 5<br> x - 3y = 6
Umnica [9.8K]

Answer:

then substitute y in eq 1 to get x

hope this helped you

Please mark as the brainliest (ㆁωㆁ)

3 0
3 years ago
Solve. 3(x+1)-2x=-6
RideAnS [48]
D.)  x = - 9


C.) x = 0

Hope that helps, Good luck! (:



4 0
3 years ago
Other questions:
  • 20 + g + g =14 <br><br> I don't understand please help
    9·1 answer
  • What is the measure of RSL?
    5·1 answer
  • I’m struggling with #10, please help!? :(
    10·1 answer
  • Which graph represents the equation Cost = Number of toppings x 2 + 3
    14·1 answer
  • how much would 200 invested at 6% interest compounded annually be worth after 6 years? round your answer to the nearest cent
    12·1 answer
  • I just want to make sure that this is correct:
    13·1 answer
  • 9.1% of 140 is what number
    14·2 answers
  • 4x/x^2+1 what the graph for the equation
    9·1 answer
  • Drag each tile to the correct box.
    10·1 answer
  • 20. The H.M. between 2 and 8 is<br>(1 marks )​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!