for some reason would not let me post the summation right
using weak induction
n
e i = (n(n+1))/2
i=1
(a) (1 point) show that p(1) is true, which completes the base case.
(b) inductive step:
i. (1 point) what is your inductive hypothesis?
ii. (1 point) what are you trying to prove?
iii. (2 points) complete the proof:

dude thats to long figure it

step-by-step explanation:

hello, never fear papaguy is here!

c. histogram

step-by-step explanation:

1) the property is   ixi = a ⇔x = a   o x = -a

4(x-5)+3= 15⇒4x-20+3 = 15⇒4x-17= 15⇒4x = 15+17⇒4x = 32⇒x =32/4= 8

4(x-5) +3= -15⇒4x-20 +3 = -15⇒4x-17= -15⇒4x =-15+17⇒4x = 2⇒x =2/4= 1/2

the values are x =8 and x = 0,5