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asambeis [7]
4 years ago
14

25 POINTS!!!!!!!!! ALGEBRA 2 STATISTICS QUESTION!!!!!!!!!!!!!!

Mathematics
1 answer:
Serga [27]4 years ago
6 0
A median is 65 inches and a standard deviation is 1.7:
a.   65 + 1 SD = 65 + 1.7 = 66.7 in
It means that there are : 100% - ( 50% + 34% ) = 100% - 84% = 16% students taller than 66.7 inches.
b.  Heights between 61.6 in and 68.7 in are within 2 standard deviations:
13.5% + 34% + 13.5% + 34% = 95%
0.95 * 300 = 285
There are 285 students between 61.6 in and 68.7 in tall. 
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23/28 of the wall is covered by bookcases
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4 years ago
Solve for Xon the following Equations.<br> 1. 4 + 7 x X = 22
lesantik [10]

Step-by-step explanation:

4 + 7 x X = 22

4+7x=22

7x=22-4

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4 years ago
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Select the equations of the lines that are parallel to the line whose equation is y= 3x +5.
Andru [333]

Answer:

-3x + y = 8.

3y = 9x.

Step-by-step explanation:

To find the slope of the lines we convert to slope-intercept form, which is

y = mx + c   (m is the slope.)

The slope of y = 3x + 5 is therefore 3.

Parallel lines have the same slope.

Finding the slope of the given lines:

-3x + y = 8

y = 3x + 8  - slope is 3 so this is parallel to  y = 3x + 5.

3y = 9x

Divide through by 3:

y = 3x  - so this is also parallel to 3x + 5.

y = -jx  The slope is -j so it is not parallel.

16x + 2y = 12

2y = -16x + 12

y = -8x + 6  - Not parallel.

3 0
3 years ago
Choose 3 values for x that would make this inequality true. <br> X - 4&lt;20
Sergio039 [100]

Answer:

X= 23, 22, 21, 20, 19, 18, 17 and so forth

Step-by-step explanation:

To make this inequality true then "X-4" would have to be less than 20, not equal or more than. 24-4=20 meaning the basis for the answer of X would start at 23

6 0
3 years ago
How long is a avarage school bus
Jlenok [28]

Answer:

School buses range anywhere from 20 to 45 feet in length ok?

5 0
3 years ago
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