Answer:
B) 20 + 15i
Step-by-step explanation:
So first you need to foil the equation (a + bi)(c + di) = ac +adi +bic +bidi. then you need to combine like terms. Remember that i^2 = 1 and i = i.
Then write your final answer in the terms a + bi
Answer:
all of the above to be honest
because they all have 2 pairs of parallel sides
Billion gallons per day, because the independent quantity is time in days and dependent quantity is volume of water in billion gallons is the one among the following that <span>is the most appropriate unit to describe the rate at which water flows over Niagara Falls. The correct option among all the options that are given in the question is the third option or option "C".</span>
Answer:
none of the above
Step-by-step explanation:
Vertical angles are opposite angles made by intersecting lines
a and b are not vertical angles no
Complementary angles - two angles that add to 90 degrees
b is 90 degrees by itself no
Supplementary angles - two angles that add to 180 ( would make a straight line)
a and b do not form a straight line they are not vertical angles - no
Do it then, no one is stopping you right now.
