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quester [9]
3 years ago
8

30 POINTS. Please simplify this with all steps

0" id="TexFormula1" title="( \frac{5i^3t^4}{7})-2 " alt="( \frac{5i^3t^4}{7})-2 " align="absmiddle" class="latex-formula">
Mathematics
2 answers:
lesantik [10]3 years ago
8 0
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
Brrunno [24]3 years ago
3 0
I^3= -1 
\frac{5i^{3}t^{4}  }{7} = -\frac{5it^4}{7}

\frac{5i^{3}t^{4} }{7} = -\frac{5it^4}{7} = answer-2- \frac{5t^4}{7}i
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Answer:

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Step-by-step explanation:

The area (A) of the trapezoid is calculated as

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Here h = 5 , b₁ = 24 and b₂ = 18 , then

A = \frac{1}{2} [ (24 + 18)5 ]

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   = 105 cm²

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