Answer: Option C) The solution contains points in three quadrants of the coordinate plane.
Please, see the attached files.
Thanks.
Answer: 84.13%
Step-by-step explanation:
Given : The scores in a a language test with normally distributed.
Mean : 
Standard deviation: 
Let x be the random variable that represents the scores of students.
Formula for z-score: 
For x= 60 , we have

The probability f test takers scored a 60 or above :-

Hence, the percentage of test takers scored a 60 or above = 84.13%
Answer:
=-3 ,-3.5
Step-by-step explanation:
8y - 6x ≥ 8y - 18
<u>-8y -8y </u>
<u>-6x</u> ≥ <u>-18</u>
-6 -6
x ≥ 6
8y - 6(6) ≥ 8y - 18
8y - 36 ≥ 8y - 18
<u> +36 +36</u>
8y ≥ 8y + 18
<u>-8y -8y </u>
<u>0y</u> ≥ <u>18</u>
0 0
y ≥ 0
(x, y) ≥ (6, 0)
Assuming you mean the diagonal of a rectangle, the diagonal is basically the pythagorean theorem, where the diagonal is c and where a and be are the length and width.
a²+b²=c²