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Pie
4 years ago
10

QRST is a rectangle. If RT = 4x – 16 and SQ = x + 5, find the value of x.

Mathematics
1 answer:
Vsevolod [243]4 years ago
4 0
If you draw the figure, RT and SQ turn out to be the diagonals of the rectangle since diagonals of a rectangle are equal, so RT = SQ ==> 4x - 16 = x + 5 ==> 4x - x = 5 + 16 ==> x = 21/3 = 7
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In 2000, the average GPA for Rutgers College students was 3.15. A sample in 2002 showed that the average GPA for Rutgers College
Vladimir79 [104]

Answer:

Null hypothesis: \mu_{2002}\leq 3.15

Alternative hypothesis :\mu_{2002} > 3.15  

C. The mean Rutgers College GPA has increased to more than 3.15

Step-by-step explanation:

Data given and notation  

\bar X_{2000}=3.15 represent the average score for Rutgers College in 2000

\bar X_{2002}=3.46 represent the average score for Rutgers College in 2002

s_{2000} represent the sample standard deviation  in 2000

s_{2002} represent the sample standard deviation  in 2002

n sample size  

State the null and alternative hypotheses.  .  

What are H0 and Ha for this study?  

Null hypothesis:  \mu_{2002}\leq 3.15

Alternative hypothesis :\mu_{2002} > 3.15  

For this case we need to take in count that the alternative hypothesis can't have and = sign, and based on the information a good hypothesis here would be if the average GPA increased between 2000 and 2002, so based on this the best option for this case would be:

C. The mean Rutgers College GPA has increased to more than 3.15

4 0
3 years ago
THERE IS A ANSWER CALLED 'C' BUT it's NOT IN THE IMAGE HELP
larisa [96]

The correct answer I would think would be C but I would try A because B does no have a proportion of 3/4.

4 0
3 years ago
PLEASE HELP ASAP
mel-nik [20]

I NEED PTS SORRY

SO THIS IS MY ANSWER:45tyuiuytredfghj

7 0
3 years ago
A- 5 √30<br> B- 5 √10<br> C- 6 √10<br> D- 6 √30
yuradex [85]

The answer is<em> </em><em>D</em>.

I hope this helps



5 0
4 years ago
Ruben bought six new books for his collection. This increased his collection by 12%. How many books did he have before his purch
NeTakaya

<span> 20. Let x represent the amount of books he had:
x + 6 = 1.12x

Subtract x from both sides:
6 = 0.12x

Divide both sides by 0.12; x = 50
</span>

<span>28. $6 + 0.025*$6 = $6 + $0.15 = $6.15 </span>


4 0
3 years ago
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