The one on the top is the answer
1.8x + 3.1 = 2.3x + 1.9
1.8x - 2.3x = 1.9 - 3.1
-0.5x = -1.2
x = -1.2 / -0.5
x = 2.4 weeks
Answer:
50
Step-by-step explanation:
- 8i = √-64
8i + 6
- -4i = -√-16
-4i + 3
[8i + 6][-4i + 3] → FOIL
>> -32i² + [24i - 24i] + 18
↑ ↑
-1 0
>>> 32 + 18 = 50
Information on Imaginary Numbers
√-1 = i
-1 = i²
-i = i³
1 = i⁴ [And every other exponent that is a multiple of 4; this cycle then repeats itself every time you go up one number at a time]
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