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mixer [17]
2 years ago
12

Complex analysis/Compute: 2+i/2-i=

Mathematics
1 answer:
leva [86]2 years ago
6 0

Answer:

2 - 0.5 i

Step-by-step explanation:

proof

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Which of the following is equal to the rational expression when x*-2 or 3?<br> X^2 +5x+6<br> X^2-X-6
trasher [3.6K]

Answer:

Step-by-step explanation:

x=-2, x=3

---------------

x^2+5x+6=(-2)^2+5(-2)+6=(-2)(-2)-10+6=4-10+6=-6+6=0

x^2+5x+6=3^2+5(3)+6=9+15+6=24+6=30

---------------------------------------------------------------

x^2-x-6=(-2)^2-(-2)-6=4+2-6=6-6=0

x^2-x-6=3^2-3-6=9-3-6=6-6=0

-----------------------------------------------------

7 0
3 years ago
The crayola crayon company can make 2400 crayons in 4 minutes.How many crayons can they make in 15 minuttes
scZoUnD [109]

<span><span>4 x n = 2400 x 15Find the cross products</span>
<span>4n = 36000Multiply</span>
<span>n = 9000Divide both sides by 4</span></span>

<span>The Crayola crayon company can make 9000 crayons in 15 minutes.</span>

<span>hope this helps :)</span>

6 0
3 years ago
Can I have help solving this?
tensa zangetsu [6.8K]

4^2 + 2(4 + 6)

4^2 + 2(10)

16 + 2(10)

16 + 20

36

3 0
3 years ago
You are planning to make a collage and are gathering materials.for the backing you will use a piece of heavy recycled cardboard
Lunna [17]
1. 4 3/4 feet = 19/4 feet
2 2/5 feet=12/5 feet.
multiplying them together yields 
\frac{19}{4} * \frac{12}{5} =
=  \frac{57}{5} = 11.4 ft^{2}

Part 2: 
11.4 ft^2 - 4 1/2 ft^2=
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Now you're trying to find now many rectangular cutouts (that each are 3/8 ft^2) will fit in the remaining space.
You do that by dividing the remaining space left by 3/8:
\frac{69}{10} / \frac{3}{8} =  \frac{69}{10} * \frac{8}{3} =  \frac{92}{5}
since you have to have a whole number of cutouts, you round 92/5 down to 90/5, which is 18 cutouts
5 0
3 years ago
Cora babysat for 3 1/2 hours and charged at $28. At the same hourly rate, what would she charge for 5 1/2 hours of babysitting?
RUDIKE [14]

42.9 goodluck :) ...

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3 years ago
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