Try this solution (see the attachment), note:
1. the word 'ctgx' means 'cotangens x'; 2. this equation has roots not for all the real number 'r', it is shown in the 2-d line of the answer; 3. the answer is marked with red colour.
Answer:
24.8
Step-by-step explanation:
180-117.6 = 62.4
62.4 = 2x + 12.8
- 12.8 -12.8
------------------------
49.6 = 2x
/2 /2
------------------------
x = 24.8
Answer:
The median is less than the mean.
Step-by-step explanation:
The sum of three times a number, x, and 12
3x+12
Answer:
the answer is c. One real number solution
Step-by-step explanation: