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Leni [432]
3 years ago
5

Add and write the result in the form a+bi. a. (4 + 2i) + (-6 - 7i)

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

- 2 - 5i

Step-by-step explanation:

Given

(4 + 2i) + (- 6 - 7i) ← remove the parenthesis

= 4 + 2i - 6 - 7i ← collect like terms

= - 2 - 5i

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Imagine each letter of the word ""mathematical"" is written on individual pieces of paper and placed in a bag. Should you pick a
Aleksandr-060686 [28]

Answer:

The question has a missing part and here it the complete question:

Imagine each letter of the word “Mathematical” is written on individual pieces of paper and placed in a bag. Should you pick a random letter from that bag, what is the probability that you pick a vowel?

Answer: 5/12

Step-by-step explanation:

The question asks for the probability of picking a vowel.

From the word 'Mathematical', we have a total of 12 letters and a total of 5 vowels (a,e,a,i,a).

Probability of picking a vowel = Total number of times the event(vowel) occurs/total number of possible outcomes(total letters)

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6 0
3 years ago
92​% of what number is 253​?
Romashka-Z-Leto [24]
Let, the number = x
Then, x * 92% = 253
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x = 275

In short, Your Answer would be 275

Hope this helps!
3 0
3 years ago
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