Answer:
4i - 3
Step-by-step explanation:
-10 + 9i + 7 - 5i
Collect like terms: 4i - 3
Answer:
Step-by-step explanation:

<u>If we substituted 1 for a then:</u>
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9.6 guests which isn't technically possible so it has to be 10 according to my calculations
This is actually pretty easy. Since we want lines, we can eliminate the bottom 2. The symbol for perpendicular is an upside down T so it is B
Answer:
c = 30
Step-by-step explanation:
since:

once we find a c value for 10, we know that it will work for - 10 as well

we can sub in 10 to get
