Let the complement be “x”
Equation: x+8=90
x= 90-8= 82 degrees
Each flow element requires a test gauge ---> 32*80 = $2560
Each flow element needs total of 6 feet of tubing ----> 32*6 = 192 ft
price per foot = 6/100 = $.06
-----> 192*.06 = $11.52
Each 3-ft length of tubing requires 2 connectors. ----> (192/3)*2 = 128
-----> 128*2.5 = $320
Total Cost = 2560 + 11.52 + 320 = $2891.52
Subtract from budget:
3000 - 2891.52 = $108.48
This is even function because
1)the ends are looking in one side, both are up
2)You can see that it has line symmetry y
3) for any point
f(x)=f(-x)
f(1)=-6
f(-1)=-6
Yes they are if that helps, if you still are unsure than just mesure them and you will see
