Answer:
see below
Step-by-step explanation:
(2x + i)(2x – i)
FOIL
first 2x*2x =4x^2
outer -i * 2x = 2x i
inner i * 2x = 2x i
last i * -i = -i^2 and i^2 = -1 so - (i^2 ) = - (-1) = 1
Add together
4x^2 + 2xi -2x i +1
Combine like terms
4x^2 +1
Answer:
9/2 feet
Step-by-step explanation:
This means that the total height is 6 * 3/4 or 18/4=9/2 of a foot.
Answer:
how do i use this site im new
Step-by-step explanation:
Answer:
set is a collection of distinct elements. vector is an element of a vector space.
Step-by-step explanation:
Answer:
approximately 9
Step-by-step explanation:
6 squared (36) plus 8 squared (64) is 84, and the square root of that is about 9
