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Cerrena [4.2K]
3 years ago
6

Please help! The last answer I need!

Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer

I would choose the answer c

really hope that helps  

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A friend of yours, a senior, took the Graduate Record Exam in September and scored in the 99th percentile. InFebruary, your frie
Alecsey [184]

Answer:

"differential selection"

Step-by-step explanation:

If your friend took the test twice and passed both times with a score above 90% then the minor difference in price is most likely due to "differential selection". The first test had  questions that he had a little more experience in solving, while the second time he was most likely given a couple questions that he wasn't as prepared for as he was the first time. This is most likely the cause for the difference in percentiles.

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

3 0
3 years ago
Use an algebraic approach to solve the problem.
qaws [65]

Answer:

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

Step-by-step explanation:

Use the formula for the mean: sum of elements / number of elements

Let x represent her first exam score.

Her second exam score can be represented by x + 11, since it was 11 points better than her first.

Her third exam score can be represented by (x + 11) + 5, since it was 5 points better than her second.

Plug in all of these expressions into the mean formula. Plug in 87 as the mean, and plug in 3 as the number of elements (since there are 3 scores):

mean = sum of elements / number of elements

87 =  ( (x) + (x + 11) + (x + 11) + 5 ) / 3

Add like terms and solve for x:

87 = (3x + 27) / 3

261 = 3x + 27

234 = 3x

78 = x

So, her first score was a 78.

Find her second score by adding 11 to this:

78 + 11 = 89

Find her third score by adding 5 to the second score:

89 + 5 = 94

Her first exam score was a 78, her second exam score was a 89, and his third exam score was a 94.

6 0
3 years ago
I NEED HELP WITH THIS PLEASE!!!!!
kumpel [21]

Answer:

nt ooooo

o

Step-by-step explanation:

5 0
2 years ago
Complete the table Y=6x-4
viktelen [127]

Answer:

With Two points is enough to describe this graph

\left[\begin{array}{ccc}\frac{4}{6} &0\\0&-4\\\end{array}\right]

Step-by-step explanation:

Interception with Y axis (y=0), thus we have the following equation:

0=6*x+4

x=4/6

The point for this is (4/6 , 0)

Interception with x axis (x=0), thus we have the following equation:

Y=4*0-4

y=-4

The point for this is (0, -4)

4 0
2 years ago
Is the number a rational number? Help me out please!
krek1111 [17]

Answer:

first answer

Step-by-step explanation:

Hi, this is correct because repeating decimals are rational numbers.

Rational numbers can be written by a fraction of integers.

If there is a pattern, it means that this is the division of two integers.

hope this helps

8 0
2 years ago
Read 2 more answers
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