3 years ago

Sorry but I’m really confused help me..

Mathematics

1 answer:

sveta [45]3 years ago

3 0

40% in decimal form is 0.40 so that seems to be the answer

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Simplify showing all steps:<br> <img src="https://tex.z-dn.net/?f=4i%28%20%5Cfrac%7B1%7D%7B2%7Di%29%5E2%28-2i%29%5E2" id="TexFor

fenix001 [56]

We know that i=√-1
so we do pemdas
$\frac{1}{2} i$ = $\frac{ \sqrt{-1} }{2}$
exponents
$( \frac{ \sqrt{-1} }{2} )^{2}= \frac{( \sqrt{-1} )^{2}}{2^{2}}$ = $\frac{-1}{4}$
then $(-2i)^{2}$ =-2 times -2 times i times i=4 times -1=-4
now we have

$4i( \frac{-1}{4} )(-4)$ = $( \frac{-4i}{4} )(-4)$ = $( -i)(-4)$ =4i=aprox 4√-1

the answer is 4i

5 0

2 years ago

A spinner with 8 equal sections was spun 140 times. What is a reasonable prediction for the number of times the spinner will lan

ahrayia [7]

If you multiply 8 * 140 it equals 1120

6 0

3 years ago

Read 2 more answers

Determine the total number of roots of each polynomial function. f (x) = 3x6 + 2x5 + x4 - 2x3

Oxana [17]

Answer:

6 roots