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pogonyaev
3 years ago
15

Plot -1 + i in the complex plane

Mathematics
1 answer:
Masteriza [31]3 years ago
6 0
In the complex plane, the point (a,b) corresponds to the complex number a+bi. So this means the number -1+i can be represented by the point (-1,1).
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Explain why 7 times x/7=x. How does your answer help you solve a division equation such as x/7=2?
tatiyna
Dear Ajtocute, let's have x=9 Multiply 7 by 9 to get 63. Then, you divide 63 by 7 to get back to 9. You just cancel out the multiplication with division.
7 0
3 years ago
in 2011, an Action Comics no. 1, featuring first appearance of superman, was sold at auction for $2,161,000. The comic book was
Salsk061 [2.6K]

Price of book in 1938 = $ 0.10

Price of book in 2011 = $ 2,161,000

Number of years over 1938-2011 = 2011 - 1938 = 73

Annual increase in the price = ((\frac{\text{Price of book in 2011}}{\text{Price of book in 1938}}) ^ \frac{1}{\text{Number of years}} - 1 ) * 100

⇒ Annual increase in the price = ((\frac{2,161,000}{0.1}) ^ \frac{1}{73} - 1 ) * 100

⇒ Annual increase in the price = (1.260302283  - 1 ) × 100

⇒ Annual increase in the price = 0.260302283 × 100

⇒ Annual increase in the price = 26.0302283 %

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Hence, the comic book price increased by 26% annually

3 0
2 years ago
If A= [-5,7] and B= [6,10], then find A u B
lesantik [10]

Answer:

\large\boxed{A\ \cup\ B=[-5,\ 10]}

Step-by-step explanation:

Look at the picture.

The union of two sets A and B (A ∪ B) is the set of elements which are in A, in B, or in both A and B

7 0
3 years ago
Solve for a. A/e -d=c.
Firdavs [7]
Given the literal equation, a/e - d = c:

To solve for "a", add "d" to both sides:
a/e - d + d = c + d
a/e = c + d

Next, multiply both sides by "e" to isolate "a"

(e) a/e = [c + d] (e)

Distribute "e" into the bracket to arrive at the final answer:

a = ce + de

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2 years ago
Ca someone plzzz help meeeee!
dezoksy [38]

Answer:

3.8, 3.9 , 4.0 , 4.1 , 4.2 ,4.3

Step-by-step explanation:

7 0
3 years ago
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