Answer:
z = 4/5
Step-by-step explanation:
3(5z + 7) = 33
Divide each side by 3
3/3(5z + 7) = 33/3
5z+7 = 11
Subtract 7 from each side
5z+7-7 = 11-7
5z = 4
Divide by 5
5z/5 = 4/5
z = 4/5
1st...
80 * 115
P = 2 * 80 + 2 * 115
P = 160 + 230
P = 390 is the perimeter
A = 80 * 115
A = 9, 200 is the area.
I could only get the first part done for you maybe others are watching where they can help you with the second part of the question:::
Hope that helps!!!!
Answer:
(-8 , 0)
(10 , 0)
Step-by-step explanation:
(-8)^2 - 2(-8) - 80 = 0
(10)^2 - 2(10) - 80 = 0
then (-8 , 0) and (10 , 0) are x-intercepts Of the polynomial f
the others are not because (for instance):
(8)^2-2(8)-80 =
:)-32
