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Leviafan [203]
3 years ago
8

5. A video store charges a monthly

Mathematics
1 answer:
Rasek [7]3 years ago
8 0
Answer: 8 movies

12 + 1.50x = 3x

Move the variables to one side

12 = 1.50x

Isolate x

8 = x


Check:

3(8)= 24

12.00 + 1.50(8) = 24
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A survey was conducted that asked 1003 1003 people how many books they had read in the past year. results indicated that x overb
kirill115 [55]
The confidence interval is

10.5\pm1.35 = (9.15, 11.85).  This means that we can be 99% confident that the mean number of books people read lies between 9.15 and 11.85.

To find the confidence interval, we first find the z-score associated with it:

Convert 99% to a decimal:  0.99
Subtract from 1:  1-0.99=0.01
Divide by 2:  0.01/2 = 0.005
Subtract from 1:  1-0.005 = 0.995

Using a z-table (http://www.z-table.com) we see that this is associated with a z-score between 2.57 and 2.58.  Since both are equally far from this value we will use 2.575.

We calculate the margin of error using

ME=z*\frac{s}{\sqrt{n}}
\\
\\=2.575*\frac{16.6}{\sqrt{1003}}=1.35

This means that the confidence interval is
10.5\pm1.35

The lower limit is given by 10.5-1.35 = 9.15.
The upper limit is given by 10.5+1.35 = 11.85
5 0
2 years ago
Select the correct answer.<br> Which table shows a proportional relationship between x and y?
wolverine [178]

Answer: The answer would be choice C because there is a constant rate of change of 3 :)

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help ASAP!!!!!!!!!
algol [13]

Answer:

A = 23.6 units^2

Step-by-step explanation:

Let the base be 8 (as shown).

Find the height of the triangle:   Find the supplement of the 100 degree angle; it is (180 - 100), or 80 degrees.  The side "opposite" this 80-degree angle is the height of the triangle:

   

                               height      

sin 80 degrees = ---------------

                                    6

and so the height of the triangle is h = 6 sin 80 degrees, or 5.91 units.

The area of the triangle is found using A = (1/2)(base)(height), which here amounts to:

A = (1/2)(8 units)(5.91 units), or

                                                       A = 23.64 units^2, or A = 23.6 units^2

3 0
3 years ago
I'm being Timed please hurry.
koban [17]

Answer:

D. 45 degree counterclockwise rotation

Step-by-step explanation: :              

The original image is triangle TUV and it has been rotated counter clockwise to form triangle T'U'V' using the origin as the center of rotation. . The rotation is 45 degrees rotation.                                

Hence, option B is correct.

Plz mark brainliest!

6 0
3 years ago
Antony has a net spendable income of $1,950 per month. What is the maximum recommended amount of money that he should budget for
REY [17]

The max budget for food is 17%


.17 x 1950 = 331.5


The answer is $332


Just took this test and got it right

7 0
3 years ago
Read 2 more answers
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