Step-by-step explanation:
x²=5x+4
- x²-5x-4=0
- x²-x+4x-4
- x(x-1)+4(x-1)
- (x_1)(x+4)
hope it helps.
Answer:
a=
Step-by-step explanation:
The area of the wetland that will be covered in purple loosestrife 7 years from now is modeled by this expression.
500(1.2)^7
After evaluating the expression, the model predicts that approximately 1,792 acres of the wetland will be covered in purple loosestrife 7 years from now. This is not a valid prediction because the total area of the wetland is only 1,240 acres. So a constraint on the model is that the value of the expression 500(1.2)^t must be less than or equal to 1,240.
Work cell produces 120 digital light processors in a week. We want to find the time spent on each processor in minutes. So for this first we will find the total time spent on 120 processors in a week.
Number of productive hours in a day = 7.5
Working days per week = 6
So, number of productive hours per week = 6 x 7.5 = 45 hours
1 hour = 60 minute
So,number of productive minutes per week = 45 x 60 = 2700 minutes
120 processors are produced in time = 2700 minutes
1 processor is produced in time = 2700/120 minutes = 22.5 minutes
So, it takes 22.5 minutes to produce one digital light processor
The first investor you invested $180,000 the second $270,000 and the third $450,000.
Solution:
2+3+5=10
900,000/10=90,000
90,000x2=180,000
90,000x3=270,000
90,000x5=450,000
