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Cloud [144]
3 years ago
8

What is the inverse property of the complex number 9-4i

Mathematics
1 answer:
Zina [86]3 years ago
6 0

Answer:

when added to the original number, would equate to zero. Another term this may be known as is the additive identity. The additive inverse is simply:

(a + bi) = -(a + bi)

Given: 9 - 4i

-(9 - 4i) = -9 + 4i

Therefore, the answer is B.

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You are playing a video game. For each diamond you collect, you earn 110 points. You also earn 80 bonus points by completing the
sashaice [31]

Answer:

110d + 80 > 1620

d > 14

Step-by-step explanation:

The amount of points from collecting diamonds can be represented by 110d, since you get 110 points for each diamond, d

Add 80 to this to represent the bonus points.

Use a greater than inequality, because you have to get more than 1620 points.

Put this all together:

110d + 80 > 1620

Then, solve for d:

110d + 80 > 1620

110d > 1540

d > 14

So, you have to collect more than 14 diamonds in less than 2 minutes in order to advance to the next level.

4 0
3 years ago
The solutions to the equation -4|x + 9| = -8 are:<br> 7, 11<br> 7, -11<br> -7, 11<br> -7, -11
dimaraw [331]

Answer:

option 4

Step-by-step explanation:

<u>Given</u><u> </u><u>Equation</u><u> </u><u>:</u><u>-</u><u> </u>

=> -4| x + 9 | = -8

<u>To </u><u>FinD</u><u> </u><u>:</u><u>-</u><u> </u>

=> Solution of the equation .

<u>Solving </u><u>it </u><u>:</u><u>-</u><u> </u>

=> -4| x + 9 | = -8

=> | x + 9 | = -8/-4

=> |x + 9| = 2

=> ( | x + 9 | )² = 2²

=> x + 9 = ±2

=> x = -9 +2 , -9-2

=> x = - 7 , -11

Option 4 is correct.

5 0
3 years ago
Read 2 more answers
What is 1.086 rounded to the nearest whole number
Sphinxa [80]
1.086 rounded to the nearest whole number is 1
5 0
3 years ago
Is -49 a rational number? please explain
aleksklad [387]
Yes, because a rational number is any number that can be expressed as a fraction a/b where a/b are both integers, but cannot be zero.
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3 years ago
Kyle drives 330 miles on 15 gallons of gas. How many miles per gallon (mpg) did Kyle get? A) 12 mpg B) 16 mpg C) 19 mpg D) 22 mp
Vikki [24]

Answer:

d. 22mpg

Step-by-step explanation:

330/22

5 0
3 years ago
Read 2 more answers
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