Use a proof by contradiction to prove that the sum of two odd integers is even.

Step-by-step explanation:

to prove that the sum of two odd integers is even.

Let a and b be two odd integers.

If possible assume that

, i.e. sum is a product of 2, hence even.

Since a is odd,

for some integer k.

Subtract a from a+b to get

i.e. b is a multiple of some integer l by 2

i.e. b is even.

This contradicts our assumption that both a and b are odd

Hence proved that the sum of two odd integers is even.

answer: b

step-by-step explanation:

choice b

step-by-step explanation:

f(x) = 88x^2 -264x + 300

the line of symmetry of a parabola is defined by

h = -b/2a

where ax^2 +bx+c=0

so

h = - -264/ (2*88)

h = 3/2

so x = 1.5