That bracket symbol, with an r in it, means "the absolute value of r".
So r's absolute value is -2 meaning r is two units from zero
r= 2
Explanation:
Sum of all angles= 180 degrees
So,
3x + 75= 180
3x= 180 - 75
3x= 105
x= 105/3
x= 35
Answer= 35 degrees
0.4x + 3.9 = 5.78
1. Subtraction property of equality:
Subtract 3.9 from both sides of the equal sign:
0.4x = 1.88
2. division property of equality:
Divide both sides of the equal sign by 0.4:
X = 4.7
Answer:
x=5/3
Step-by-step explanation:
Answer:
B
Step-by-step explanation: