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lawyer [7]
3 years ago
5

Simplify (8 + 7i) + (2 –i)

Mathematics
1 answer:
inna [77]3 years ago
8 0
<span>Simplify (8 + 7i) + (2 –i) 
</span>answer:10+6i 
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-6x-7=3x+11 how to solve this problem
Shalnov [3]
You have to get the x to one side so you'll subtract 3x from -6x and 3x from 3x, the 3x will cancel out and -6x - 3x is -9x-7=11, you have to add 7 from both sides the 7+7 cancels out  and also add 11+7 which leaves -9x=18, you have to divide -9x/-9 and do 18/-9, which gets you x=-2. Here's the work shown if you didn't what i said...
-6x-7=3x+11
-3x    -3x
-9x-7=11
    +7  +7
-9x=18
-9   -9
x=-2
6 0
3 years ago
The cost of painting a wall that is 5 meters wide and 212 meters tall is $50. How many square meters can be painted for $1?
tigry1 [53]

Answer:

21.2 square meters

Step-by-step explanation:

The area of a parallelogram is base • height.

So:

1. Calculate the area of what you can get for $50. 5 • 212 = 1060 square meters.

2. Now you divide the first price ($50) by the desired price ($1). This one is easy because 50 / 1 = 50, but I'm putting this here for future reference in case you need to solve a problem that has a desired price that's greater than $1.

3. Divide the answer to step one by the answer to step two to get the area you can have painted for $1. 1060 / 50 = 21.2 square meters.

3 0
2 years ago
If x% of y is 10, what is y?
SVETLANKA909090 [29]
11 i think is what the answer is.
7 0
3 years ago
How many liters will you need to equal 20 gallons of lemonade? Round your answer to the nearest tenth of a liter.
a_sh-v [17]
75.7 liters to be exact because the full amt. not rounded is 75.7082. I got this by using conversion tables <span />
5 0
3 years ago
Read 2 more answers
What is 0.20833333333 as a fraction?
Greeley [361]

Answer:

20833/1000000

Step-by-step explanation:


5 0
3 years ago
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