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deff fn [24]
4 years ago
13

Find all complex numbers z such that z^4 = -4.

Mathematics
1 answer:
kumpel [21]4 years ago
5 0

Answer:

z = +- √2i

z = +- i×√2i

Step-by-step explanation:

I've attached the explanation

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on the first day of every month Katie gets 450 phones she repairs 10 phones every day how many phones does she have left to repa
MaRussiya [10]

Answer:

340 phones

Step-by-step explanation:

Make an expression

She repairs 10 phones each day, d.

Each day she repairs 10 phones, it is 10 phones off the total number (450) she has to repair, so we can subtract 10d from 450.

450-10d

We want to find how many she has left after 11 days, so we can substitute 11 in for d

450-10(11)

Multiply

450-110

340

She will still have 340 phones left to repair

5 0
3 years ago
If u help me and answer correctly ill give brainlest thanks
Anna007 [38]

Answer:

10/4 in simplest form 5/2

Step-by-step explanation:

Since 2 goes into 10 and 5 you divide 2 by those two numbers which gives you 5/2

7 0
2 years ago
Find the radius and diameter of a frisbee with a circumference of 11 pi inches.
nikdorinn [45]
Circumerence=2pir or dpi were r=radius and d=diameter
11pi=2pir
divid eobt sides by pi
11=2r
dvide 2
5.5=r

11pi=dpi
divide both sides by pi
11=d

diameter=11in
radius=5.5 in
6 0
4 years ago
Please help with this question. I am desperate! I don't understand!
nlexa [21]
It only has symmetry about the axis, that means that if i were to draw a line down the middle, the triangle looks the same on both sides. If it were split in half horizontally, it would not be symmetrical.
7 0
4 years ago
Please help with this extra points
Bingel [31]
Number 9. 

A is 5
and B is .6 or 6/10
6 0
3 years ago
Read 2 more answers
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