Alright, we're in the home stretch here :) All you need to remember is that i² = -1. Otherwise, it is the same as FOIL
(3-2i)(1+7i)
3-2i+21i-14i² ← Replace the i² with -1, then simplify like numbers
3+19i+14
17+19i or C
for a triangular prism, its volume will simply be <u>area of its base</u> times its length.
the are of the base for this one is simply any of those triangular bases. Now, let's notice, the right-triangle has a base of 9 and a height o 9, notice the tickmarks, whilst the prism also has a length of 13.

Answer:
A
Step-by-step explanation:
It has 80cm volume
The awnser is 27
hope that helps
The answer is E. This inequality best suits the given because in order to achieve an A she must have an average of the three test scores in which the last test score must be higher than or equal to 94. Hope this helps and have a good day!