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:
2160
Step-by-step explanation:
because c is 15 and d is 12 therefore d² is 144 and 144x15 is 2160
Plug the values (x,y)=(0,0) into the inequalities:

0 isn't greater than 0, no (0,0) is not a solution to either of these inequalities.
The answer is D.
Answer:
false
Step-by-step explanation:
it suppose to be -2 if you equate it to Zero
Hello!
since this is a 45-45-90 degree triangle the hypotenuse is a

where a is one of the legs
So the answer is 5

Hope this helps!