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joja [24]
3 years ago
15

For i^2 =-1, (3-i)^2 = ? A. 8 B. 10 C. 8-6i D. 8 + 6i E. 10-6i

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0
C. 8- 6i
(3- i) to the power of 2 (expand the expression)

9- 6 i + i to the power of 2
calculate

9 - 6i - 1
calculate

8- 6i.

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Candice won the lottery for 30000 dollars.However 20% of her money has to go to the state for taxes.How much money will she rece
Trava [24]

Answer:

She will receive $24,000 after paying taxes

Step-by-step explanation:

This question can be solved using a rule of three.

20% of her money has to go to the state for taxes. So she will receive 100-20 = 80%. $30000 is 100% = 1. How much is 80% = 0.8?

$30000 - 1

$x - 0.8

x = 30000*0.8

x = 24000

She will receive $24,000 after paying taxes

7 0
3 years ago
What function is it when an objective function is maximized.
Leokris [45]

Answer:

Linear Objective Function

7 0
2 years ago
In Friday NIght Funkin' dave and bambi How and What did Dave become 3D?
Ierofanga [76]

Answer:

21

Step-by-step explanation:

because you rupedid lol

5 0
2 years ago
The price of a car is 15,000. John got a 20% discount. Find how much is the discount and how much he will pay after the discount
My name is Ann [436]

<em>Answer:</em>

<em>12000</em>

<em>Step-by-step explanation:</em>

<em>20% of 15000 is 3000.</em>

<em>So he will pay 12000.</em>

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<em>Hope I helped you!</em>

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6 0
2 years ago
Through (-1,5) , perp to y =1/9x+2 write the slope intercept form for the equation
ycow [4]

Answer:

y=-9x-4

Step-by-step explanation:

Perpendicular lines meet the following condition:

m2*m1= -1 (a)

where m is the slope of a line

m1 is given through equation of line 1, y =1/9 x+2

m2 must be -9 -> from eq. (a)

The Line has the following equation: y=mx+b, where m=-9 and the b is the interception with y axis.

Evaluating the above equation in (-1,5) we have the following equation

5= -9*(-1)+b, we have b=-4

The line has the following equation

y=-9x-4

Slope intercept form

4 0
3 years ago
Read 2 more answers
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