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fiasKO [112]
3 years ago
14

1)simplify the expression (2x)^4 2)the perimeter of a rectangular is twice the sum of its length and its width. the perimeter is

16 meters and its length is 2 meters more then twice its width 3)Find the real numbers x and y that make the equation true.
-3 + yi = x + 6i
Mathematics
1 answer:
Marta_Voda [28]3 years ago
5 0
(2x)^4=16x^4
------------------------------------------
2(l+w)=16\\
l=2w+2\\\\
2(2w+2+w)=16\\
6w+4=16\\
6w=12\\
w=2\\\\
l=2\cdot2+2\\
l=6

-------------------------------------------
-3+yi=x+6i\Rightarrow x=-3 \wedge y=6
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