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Marysya12 [62]
3 years ago
6

Simplify (8 + 20i ) + (-17+4i)

Mathematics
2 answers:
Kitty [74]3 years ago
8 0

Answer: -9 + 24i

Step-by-step explanation:

vitfil [10]3 years ago
3 0

Answer:

20i+4i =16i-19

Step-by-step explanation:

You might be interested in
How do i round 186.282?
adoni [48]

Well, first you need to decide what place you want to round it TO.

Example:  Round it to the nearest hundredth:

The next larger hundredth is  186.29 .
The next smaller hundredth is  186.28 .
Now look at it.
186.282  is closer to  186.28  than it is to  186.29 .
So the nearest hundredth is  186.28 .

-- When  186.282  is rounded to the nearest hundredth, it becomes  186.28 .

Similarly . . .
-- When  186.282  is rounded to the nearest tenth, it becomes  186.3 .
-- When  186.282  is rounded to the nearest whole number, it becomes  186 .
-- When  186.282  is rounded to the nearest ten, it becomes  190 .
-- When  186.282  is rounded to the nearest hundred, it becomes  200 .
-- When  186.282  is rounded to the nearest thousand or anything larger,
                                                                                       it becomes  zero.

I'm curious . . . where did this number come from ?

It happens to be one thousandth of the speed of light, in miles per hour.

Did it come up in science class, or did a science geek use it for
one of the problems in math ?

6 0
3 years ago
Read 2 more answers
Write an equation that you can use to solve for x. Enter your answer in the box. ​
N76 [4]
The answer is X=27 degrees

Steps-
90-63=27
5 0
3 years ago
Read 2 more answers
What is the unit price if 4 pounds of fruit<br> cost $6.487
7nadin3 [17]
0.54 I think I’m pretty sure it is tho
6 0
3 years ago
In the sequence below, 9 is the first term when x=1. what is the equation? 9,13,17,21,25
Leya [2.2K]

Answer:

RFGJHKHBYZN H SM

Step-by-step explanation:

ok ok ok ok ok

3 0
3 years ago
Alexis has the following grades in his math class: Homework grades: 80, 100, 90, Quiz grades: 84, 90, 72, Test grades: 64, 72. I
vitfil [10]

Answer:

74

Step-by-step explanation:

Average is the sum of all the numbers divided by the number of numbers.

We will take average of Quizzes, Homeworks, and Tests. And multiply that by respective weights and find the weighted average of the 90%.

Quiz Avg:

(84+90+72)/3 = 82

Homework Avg:

(80 + 100 + 90)/3 =  90

Test Avg:

(64+72)/2 = 68

Now, weighted avg = \frac{90(0.1)+82(0.2)+68(0.6)}{0.9}=73.55

Rounding it off, we get "74", the correct answer.

3 0
4 years ago
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