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VikaD [51]
3 years ago
7

Graduate Management Aptitude Test (GMAT) scores are widely used by graduate schools of business as an entrance requirement. Supp

ose that in one particular year, the mean score for the GMAT was 476, with a standard deviation of 107.
What values are two standard deviations above and below the mean?
Mathematics
1 answer:
AlekseyPX3 years ago
5 0

Answer:

(262, 690)

Step-by-step explanation:

Given that :

Mean score = 476

Standard deviation, s = 107

2 standard deviations above and below the mean :

Mean ± 2s

Hence,

2 standard deviations below :

476 - 2(107)

476 - 214 = 262

2 standard deviations above

476 + 2(107)

476 + 214 = 690

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Samantha has a shelf that is 95 over 4 inches wide. How many books can Samantha arrange on the shelf if each book is 5 over 4 in
love history [14]

Answer:

Option 1 - 19, because the number of books is 95 over 4 divided by 5 over 4

Step-by-step explanation:

Given : Samantha has a shelf that is 95 over 4 inches wide.

To find : How many books can Samantha arrange on the shelf if each book is 5 over 4 inches thick?

Solution :

The thickness of shelf = \frac{95}{4} inches

Each book thickness = \frac{5}{4} inches

Let the total number of books that could be arranged in the shelf be 'n'.

\text{Number\ of\ books\ arranged}=\dfrac{\text{Thickness\ of\ shelf}}{\text{Thickness\ of\ one\ book}}

Substitute the values,

n=\dfrac{\dfrac{95}{4}}{\dfrac{5}{4}}

n=\dfrac{95\times 4}{5\times 4}

n=\dfrac{95}{5}

n=19

Therefore, option 1 is correct.

19, because the number of books is 95 over 4 divided by 5 over 4

4 0
3 years ago
Here is another math question 6/3+(-1/3)
gtnhenbr [62]
<span>6/3+(-1/3)
</span><span>= 6/3-1/3
= 5/3
= 1 2/3</span>
6 0
4 years ago
Simon has a scale model of the Concorde airplane. The actual length of the Concorde is approximately 200 feet. If the ratio of t
Verizon [17]
The answer is:  "40 cm " .
_________________________________________________________
<u>Note</u>:
_________________________________________________________

\frac{200 ft }{ (x) cm} = \frac{5}{1}  ;

Solve for "x" (in "cm" ) ; 


→  5x = 200 * 1 ; 

→  5x = 200 ; 

Divide each side of the equation by "5" ; 
   to isolate "x" on one side of the equation; & to solve for "x" ; 

→  5x / 5 = 200 / 5 ; 

to get:

→  x = 40 .
___________________________________________________________
The answer is:  " 40 cm " .
___________________________________________________________
6 0
3 years ago
Read 2 more answers
Which line represents the direct variation equation y = 1/2x?
Verdich [7]

Answer:

C.

Step-by-step explanation:

y = 1/ x must pass through the origin because when x = 0, y = 0.

So its either B or C.

A positive slope rises to the right ( 1/2  is positive), so its C.

You can also see that the slope of C is 1/2 because it passes through the points (0.0) and (2, 1).

7 0
3 years ago
Read 2 more answers
Help me please ASAP!
Bumek [7]

216 = 6^{4x+ 11}


6^3 = 6^{4x+ 11}


3 = 4x + 11


4x = 3 - 11


4x = -8


x = -2


Answer: (c) x = -2

8 0
4 years ago
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