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Travka [436]
3 years ago
7

Please help me please​

Mathematics
1 answer:
Anestetic [448]3 years ago
4 0

Answer:

look up the paper because i had that same paper

Step-by-step explanation:

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Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st
hichkok12 [17]

Answer:

lower than Amanda:  816 students

Step-by-step explanation:

An equivalent way in which to state this problem is:  Find the area under the standard normal curve to the left (below) 940.

Most modern calculators have built in distribution functions.

In this case I entered the single command   normalcdf(-1000,940, 850, 100)

and obtained 0.816.

In this particular situation, this means that 0.816(1000 students) scored lower than Amanda:  816 students.

6 0
2 years ago
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F(x) = (4x–5)/6 <br> Find the Inverse
noname [10]

Answer:

F^-1 (x) = 3x/2+5/4

Step-by-step explanation:

First, replace f(x) with y

Replace every x with a y and replace every y with an x .

Solve the equation from Step 2 for y  

Replace y with f−1(x) f − 1 ( x )

Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.

Hope this helps!  Stay Safe!

3 0
2 years ago
What whole number is equivalent to 16/1 ?
KiRa [710]
I think it is equivalent to 16
hope that helps! :)

7 0
3 years ago
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Simplify the<br>composite function<br>(g o f) (x)<br><br>f(x)=2x+3<br>g(x)=x​
shtirl [24]

Answer:

2x^{2} +3x

Step-by-step explanation:

g(2x+3)

x(2x+3)

2x^2+3x

3 0
2 years ago
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How do i find the least common multiple
gizmo_the_mogwai [7]
The Least Common Multiple (LCM) of some numbers is the smallest number that the numbers are factors of. Like the LCM of 3 and 4 is 12, because 12 is the smallest number that 3 and 4 are both factors for.
5 0
3 years ago
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