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disa [49]
2 years ago
5

In right trapezoid MNPQ

Mathematics
1 answer:
AysviL [449]2 years ago
7 0

Answer:

2

Step-by-step explanation:

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The SAT Reasoning Test (formerly called the Scholastic Aptitude Test) is perhaps the most widely used standardized test for coll
slamgirl [31]

Answer:

The score is  x  =  1884

Step-by-step explanation:

From the question we are told that

     The population mean is  \mu  = 1500

     The standard deviation is  \sigma  =  300

     

From the question we are told that the score follow a normal distribution

i.e     X  \~  \   N( 1500 , 300)

The proportion of score in the top 10% is mathematically

           P(X > x )  =  P( \frac{X -  \mu}{\sigma }  > \frac{x -  \mu}{\sigma }   ) = 0.10

Where x is the minimum score required to be in the top 10%

Now the \frac{X -  \mu}{\sigma }   =  Z (The  \ Standardized \ value \  of  \  X)

  So

            P(X > x )  =  P( Z > \frac{x -  \mu}{\sigma }   ) = 0.10

So

            P(X > x )  =  P( Z > \frac{x -  1500}{300}   ) = 0.10

So the critical value of  0.10  from the normal distribution table is  Z_{0.10} =  1.28

So

               \frac{x -  1500}{300}   = 1.28

              x  =  1884

           

       

6 0
3 years ago
Factorize by splitting the middle term 6x-11x+4​
Gennadij [26K]

Answer: (2x - 1)(3x - 4)

(split -11x as -8x and -3x)

Step-by-step explanation:

I am assuming that it is actually 6x^2 - 11x + 4

To find out how to split the middle term: The two numbers should multiply to a*c (6*4 = 24) and add to b (-11)

-8, -3 works

(6x^2 - 8x) + (-3x + 4)

2x(3x - 4) + -1(3x - 4)

(2x - 1)(3x - 4)

5 0
2 years ago
Substitute <br><br> -3x-8y=4<br> -2x+7y=15
Nikolay [14]
-2x=15-7y
x=-7.5+3.5y

-3x-8y=4
-3(7.5+3.5y)-8y=4
-22.5-10.5y-8y=4
-22.5-18.5y=4
-18.5y=4+22.5
-18.5y=26.5
y=-53/35

the fraction might not be in lowest terms.
3 0
3 years ago
Ellen is drawing two polygons. One of tue polygons has 3 more angles than the other. What shapes could she be drawing?
Nikitich [7]
You could have lots answers, but first, find the definition
Polygon- A shape with at least three straight sides.
<u><em>Triangle and a Hexagon is what I recommend
</em></u>
<u><em /></u><em />Hope this helps:D
<u><em /></u><u><em /></u><em />Have a great rest of a brainly day!
"AB84"
5 0
2 years ago
Read 2 more answers
Evaluate. (4/5)3 <br><br>A.64/125<br><br>B.4/125<br><br>C.64/5<br><br>D.12/5
Amiraneli [1.4K]
The answer is d. 12/5
4 0
2 years ago
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