Step-by-step explanation:
This problem is incorrect
the square root of 9 is two of the same numbers that are multiplied together to get 9 so 
=3
9+1/2=9.5
Hope that helps :)
Answer:
7.2 *10⁻⁵
Step-by-step explanation:
Given the diameter of the hair expressed as 0.000072, we are to express it in scientific notation.
The standard form of scientific notation is expressed as;
A * 10ⁿ
A is a value from 1 to 9
n is any integer.
Rewriting 0.000072 in this form, we will need to shift the decimal point to the front 5 times to have;
0.000072 = 7.2 *10⁻⁵ where;
A = 7.2 and n = -5
Note that the power is a negative value since the value is less than 1.
.50 + .40m = .48m where m is the number of minutes that equalize the cost......subtract .40m from each side
.50 = .08m divide both sides by .08
.50 /.08 = m = 6.25 minutes
Don’t mind the equation above the plot. Hope this helps:)
A) 390/.3= 1300 , 1300-390= 910, 910/1300= .70 OR 1.00-.3= .7
b) 390/.3= 1300$
c)390/.3= 1300 , 1300-390= 910$
