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AVprozaik [17]
2 years ago
7

What is the sum of the complex numbers 6+5i and 8+3i2? (NOTE: −1‾‾‾√=i )

Mathematics
1 answer:
Ahat [919]2 years ago
4 0

Answer:

11 + 5i

Step-by-step explanation:

6 + 5i + 8 + 3i² =

= 6 + 8 + 3(-1) + 5i

= 14 - 3 + 5i

= 11 + 5i

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Step-by-step explanation:

3 0
3 years ago
1. Solve proportion 12/15 = 18/b
omeli [17]
We solve the as follows:

<span>1. Solve proportion 12/15 = 18/b
</span>( 12/15 = 18/b ) b<span>
( 12b/15 = 18 ) 15/12
b = 18(15/12)
b = 45/2

2. Solve equations 

A. -x + 4 = x +6 
</span>-x + 4 - x = x +6 - x
<span>-2x + 4 - 4 = 6 - 4
-2x = 2
x = -1

B. 5n + 7 =7(n+1) -2n 
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C. -4(p+2) + 8 = 2(p-1) - 7p + 15
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-4p + 7p - 2p = -2 + 15 + 8 - 8
p =13

3. Solve a/b x - c = 0 for x 
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x = bc / a
3 0
3 years ago
Square MATH has a side length of 7 inches. which three-dimensional object will be formed by continuously rotating square MATH ar
Alla [95]

Answer:

a right cylinder with a radius of 7 inches

4 0
3 years ago
It's make-your-own-dish night at your favorite pasta restaurant. The restaurant offers 5 types of pasta and 4 different sauces.
densk [106]

Answer:

there are 20 different combinations if that was the question.

Step-by-step explanation:

Formula :

Combination(event 1) times Combinations (Event2)

3 0
3 years ago
What is the value of cosine theta in the diagram below?<br> a) 3/5<br> b) 3/4<br> c) 4/5<br> d) 4/3
anzhelika [568]

Answer:

cos(x)=0.6

Step-by-step explanation:

cos(x) represents the horizontal distance of the unit vector

sin(x) represents the vertical distance of the unit vector (0.8)

tan(x) represents the distance on the tangent line from the point to the x-axis

cot(x) represents the distance on the tangent line from the point to the y=axis

4 0
3 years ago
Read 2 more answers
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