3 years ago

Need help with this math

Mathematics

1 answer:

professor190 [17]3 years ago

3 0

hey I am from India and I went to USA last Monday

I went there with my parent ...

I lost my parents and I have my phone but I am unable to call anyone..

can you help me..

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What is i^84? a) -i b) i c) -1 d) 1

mariarad [96]

Answer:

D) 1

Step-by-step explanation:

When you start raising i to certain powers, you begin to notice a pattern.

$i^1=i \\\\i^2=-1 \\\\i^3=-i \\\\i^4=1 \\\\i^5=i \\\\ i^6=-1 \\\\ i^7=-i \\\\i^8= 1$

This cycle repeats forever. Since 84 is a multiple of 4, i^84 must be 1. Hope this helps!

7 0

4 years ago

Rewrite this decimal 4.5 as a mixed fraction in its lowest term.

Crazy boy [7]

Answer:

4.5=4 and 1/2

Step-by-step explanation:

4 0

3 years ago

Evaluate the expression: z(x + 3y) when x = 6, y = 8, and z = 5

Zanzabum

5[6+(3•8)]
5(6+24)
30+120
=150

4 0

3 years ago

X^2 - (x-y)^2 •y. If x = -5 and y = -8

ki77a [65]

Equation: x² - (x - y)² * y

Substitute values for x and y into equation.

-> (-5)² - ( (-5) - (-8) )² * (-8)
-> 25 - (-5 + 8)² * (-8)
-> 25 - (3)² * (-8)
-> 25 - 9 * (-8)
-> 25 - (-72)
-> 25 + 72
-> 97

3 0

3 years ago

Please help me. Look at the picture.

nika2105 [10]

Answer:

40 by 2.5 ?

Step-by-step explanation:

4 0

3 years ago

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Need help with this math​

Need help with this math