Ask question

Ask question

All categories

2 years ago

12

PLS HELP!

1 answer:

makvit [3.9K]2 years ago

8 0

Answer:

5.81%

Step-by-step explanation:

You might be interested in

Simplify (Are all division)<br><br>2+4i<br>3i<br><br>3+2i<br>4+i<br><br>2i^11

Alla [95]

$We\ know:\ i=\sqrt{-1}\to i^2=-1$

$\dfrac{2+4i}{3i}=\dfrac{2+4i}{3i}\cdot\dfrac{3i}{3i}=\dfrac{6i+12i^2}{9i^2}=\dfrac{6i+12(-1)}{9(-1)}\\\\=\dfrac{6i-12}{-9}=\dfrac{2i-4}{-3}=\dfrac{4}{3}-\dfrac{2}{3}i$

$\dfrac{3+2i}{4+i}=\dfrac{3+2i}{4+i}\cdot\dfrac{4-i}{4-i}=\dfrac{(3+2i)(4-i)}{4^2-i^2}\\\\=\dfrac{(3)(4)+(3)(-i)+(2i)(4)+(2i)(-i)}{16-(-1)}=\dfrac{12-3i+8i-2i^2}{16+1}\\\\=\dfrac{12+5i-2(-1)}{17}=\dfrac{12+5i+2}{17}=\dfrac{14+5i}{17}=\dfrac{14}{17}+\dfrac{5}{17}i$

$2i^{11}=2i^{10+1}=2i^{10}i^1=2i^{2\cdot5}i=2i(i^2)^5=2i(-1)^5=2i(-1)=-2i$

$Used:\ (a+b)(a-b)=a^2-b^2$

6 0

3 years ago

Solve for the solution of the system of equations by substitution

Rufina [12.5K]

-24x + 8y = 72
-29x = 58
X=-2
Y=3

8 0

2 years ago

1. 5+8 ÷2-7<br> 12× 3-42+20<br> please help me now<br> I will report your answer if bad

defon

1. 2

2. 14

5+(8÷2)-7

5+4-7

=2

(12x3) - 42 + 30

36-42+30

=14

4 0

2 years ago

Is 2/3 in smplest form

nlexa [21]

Yes it is it would not be able to go any lower
good job :)

8 0

3 years ago

Read 2 more answers

Which statements describe the function f(x) = 3(1/3)x? Check all that apply. Each successive output is the previous output divid

Citrus2011 [14]

Answer: A,b,e

A:Each successive output is the previous output divided by 3.

B:As the domain values increase, the range values decrease.

E:The range of the function is all real numbers greater than 0.

These are the answers on e2020. Hope this helps

6 0

2 years ago

Read 2 more answers