Answer:
See Below.
Step-by-step explanation:
We are given:

Using exponent properties:

Rewriting:

Since i⁴ = 1 and i² = -1:

1 to any power is still 1:

Answer:
15
Step-by-step explanation:
BD=AC
E is the midpoint of both lines, so BE=CE
Answer:
It is the same-side interior angle of B which is the vertical angle of 100 (?)
Step-by-step explanation:
Answer:
It is 21
Step-by-step explanation:
1. First I turned the fractions into decimals, just to make things easier for me.2. That gave me => (.25x)+(.75)+(.375)=(3.25)
3. Then, I combined like terms and move my equation around; so, that gave me (.25x) = (3.25) - (.75) - (.375) and when I solve the right side of the equation it gives me
(.25x) = (2.125)
4. After combining like terms and simplifying (the way I did in step 3), I will divide both sides by .25, to get the value of X alone; so, my equation then looks like => x=8.5