Answer:
7.1 points
Step-by-step explanation:
100/14=7.1 points
3x+67=130
3x=63
x=21
Your answer is 21.
Answer:
23 inches
Step-by-step explanation:
Circumference = 2πr
72 = 2×3.142×r
Divide through by 2 × 3.142
r = 
r = 11.458 inches
Diameter = 2r
Diameter = 2* 11.458 = 22.92
= 23 inches to the nearest inch
X = 3 + bi
|x| = √(3² + b²)
|x| = √(9 + b²) ..............(a)
But from the question |x|² = 13
|x| = √13
Substitute this into equation (a)
|x| = √(9 + b²) ..............(a)
√13 = √(9 + b²)
13 = 9 + b²
9 + b² = 13
b² = 13 - 9
b² = 4
b = √4
b = + or - 2
Possible value of b is +2 or - 2.
Cheers!
