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Andre45 [30]
2 years ago
15

Question 6 of 15 If there are 36 successful outcomes in a sample with a size of 80, what is the sample proportion? O A. 0.45 OB.

0.55 O c.0.22 D. 0.36 SUBMIT​
Mathematics
2 answers:
Dmitriy789 [7]2 years ago
8 0

Your Answer is A (0.45)

I just took the Test on A~P~E~X

Anuta_ua [19.1K]2 years ago
4 0

Answer:

A. 0.45

Step-by-step explanation:

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|x-4| <3

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=>. x<7 or x>1

So solution is x>1 & x<7. =x€(1,7)

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A small radio transmitter broadcasts in a 29 mile radius. If you drive along a straight line from a city 32 miles north of the t
hram777 [196]

Answer: He will pick up a signal from the transmitter 29.43 miles of the drive.

Step-by-step explanation:

Since we have given that

Radius = 29 mile

So, equation of circle would be

x^2+y^2=29^2=841

There is a straight line from a city 32 miles north i.e. (0,32) to a second city 40 miles east of the transmitter i.e. (40,0)

So, equation of line would be

y-32=\dfrac{0-32}{40-0}(x-0)\\\\y-32=\dfrac{-32}{40}x\\\\y-32=-0.8x\\\\y+0.8x=32\\\\y=32-0.8x

So, we will put this value in the equation of circle.

x^2+(32-0.8x)^2=841\\\\x^2+1024+0.64x^2-51.2x=841\\\\1.64x^2-51.2x=841-1024\\\\1.64x^2-51.2x=-183\\\\1.64x^2-51.2x+183=0

So, x= 4.12 and x = 27.1

So, y = 28.7, y = 10.32

So, distance between them would be

\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\\\\=\sqrt{(27.1-4.12)^2+(28.7-10.32)^2}\\\\=29.43

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7 0
2 years ago
A side of the triangle below has been extended to form an exterior angle of 74°. Find the value of xx.
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<h2>Answer:</h2>

x = 37

<h2>Step-by-step explanation: </h2>

x + x = 74

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6(x+4)+1= What is the answer to this great math problem
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Answer:

6x+25

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