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asambeis [7]
3 years ago
14

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

Mathematics
1 answer:
Serga [27]3 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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If the ratio of black jeans to bluejeans is 6 to 18 with a total of 240 jeans how many of them are blue
Leya [2.2K]
The ratio is 6:18 and you are trying to find out what are blue. You divide 240 by 6 and get 40. You then multiply 40 x 18 and get 720.
5 0
3 years ago
Which expression shows how to convert 60 hours to days​
torisob [31]

Answer

60 hours = 2.5 days

Step-by-step explanation:

1 day = 24 hours

2 days = 48 hours

3 days = 72 hours

so 60 hours in = to 2.5 days

hope this helps

7 0
3 years ago
Read 2 more answers
Help me please
Viktor [21]
(3x+4) units.

Working;
AM=AD+DM
      =x+5+2x-1
      =(3x+4) units

8 0
3 years ago
The diameter of a semicircle is 2 kilometers. What is the semicircle's perimeter? Use 3.14 for ​. 50 POINTS OR WHOEVER CAN HELP
Nina [5.8K]

Answer:

12.57 km

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5 0
3 years ago
ARE YOU GOOD AT GEOMETRY?? WILLING TO HELP SOMEONE OUT?? NEED EASY POINTS AND BRAINLIEST?? COME RIGHT THIS WAY ALL HELP IS APPRE
BlackZzzverrR [31]

Answer:

C: (-8,3) R:5

Step-by-step explanation:

The equation of a circle can be written as:

(x-h)^2+(y-k)^2=r^2

where (h,k) is the center, and r is the radius

We have the equation:

(x+8)^2+(y-3)^2=25

Center:

The center is (-8,3)

(x+8)^2--> (x-h)^2

Therefore the x coordinate of the center is -8

(y-3)^2-->(y-k)^2

Therefore the y coordinate of the center is 3

Radius

r^2=25

Take the square root of both sides

\sqrt{r^2}=\sqrt{25}

r=5

4 0
3 years ago
Read 2 more answers
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