Answer:
b = 4, or -4
Step-by-step explanation:
b^2 - 4*4*1 = 0
b^2 = 16
b = 4, or -4
X=percentage in decimal
30x=6
30/30x=6/30
x=1/5=.20
.20=20/100=20%
20%
Answer:
Rounding it to two decimal places, we get distance, 
Step-by-step explanation:
Given:
The two points are 
The distance between the two points can be obtained using the distance formula which is given as:

Here, for the points, 

Therefore, the distance between the points is:

Rounding it to two decimal places, we get 
Just take the answer of the subtraction problem and add it to the other number for an answer Example h-7=14 14 + 7=21 h=7