Simplify the following:
(5 i^3 t^4)/7 - 2
i^3 = i^2×i = (-1) i = -i:
(5×-i t^4)/7 - 2
Put each term in (5 (-i) t^4)/7 - 2 over the common denominator 7:
(5 (-i) t^4)/7 - 2 = (-5 i t^4)/7 - 14/7:
(-5 i t^4)/7 - 14/7
(-5 i t^4)/7 - 14/7 = (-5 i t^4 - 14)/7:
Answer: (-5 i t^4 - 14)/7
Answer: 
Step-by-step explanation:
Two lines are said to be perpendicular if the product of their slope = -1
Given :
to find the slope , we will write it in the form : 
That is
which means that the slope = 
any line that is perpendicular to this line will have slope = -2
using the formula :
, we have
This is an example of a set defined by describing the property of its elements: every element in the set must be an integer, greater than or equal to -6, and less than zero (ecluded).
So, all the numbers that satisfy this requests are -6,-5,-4,-3,-2,-1, and the answer is thus b.
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