Answer:
x = 3
Step-by-step explanation:
4x+6x - 7 = 23
10x - 7 = 23
10x = 30
x = 3
Answer:
0 < k < 2
Step-by-step explanation:
<u>In the first quadrant both of x and y get positive values, so </u>
<u>And replacing x with 2k in the second equation:</u>
- 3x + 2y = 12
- 3*2k + 2y = 12
- 2y= 12 - 6k
- y = 6 - 3k
<u>Since y > 0:</u>
<u>Combining both k > 0 and k < 2, we get:</u>
Answer:
Obtuse angle
Step-by-step explanation:
Acute angles are less than 90 degrees
Right angles equal 90 degrees
Obtuse angles are greater than 90 degrees and less than 180