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Paraphin [41]
3 years ago
12

If f(x) = x^3 – 2x^2, which expression is equivalent to f(i)?

Mathematics
2 answers:
Brums [2.3K]3 years ago
7 0
F(x) = x³ - 2x².

f(i) = i³ - 2i².

i = √-1.

i³ = (√-1)³ = √-1 * √-1 *√-1 = -1*√-1 = -√-1 = -i

i² = (√-1)² = √-1 * √-1  = -1

f(i) = i³ - 2i²  = -i - 2(-1) = -i + 2

f(i) = 2 - i
arsen [322]3 years ago
6 0
I=√-1 and all the steps are there

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Please help on this one plzzzz
deff fn [24]

We know that Angle Bisector Divides an Angle into Two Equal Angles.

As UP is the Angle Bisector of Angle U, It Divides Angle U into two Equal Parts they are Angle(1) and Angle(2)

⇒ Angle(1) = Angle(2)

Given Angle(1) = 5x + 10 and Angle(2) = 3x + 14

⇒ 5x + 10 = 3x + 14

⇒ 2x = 4

⇒ x = 2

⇒ Angle(1) = 5x + 10 = 5(2) + 10 = 10 + 10 = 20

So : Measure of Angle(1) is 20

8 0
3 years ago
What time is it.But not the time right now the time in your heart.
bonufazy [111]

Answer:

dead UnU                                                    

explanation:

who knows O_o

7 0
3 years ago
An organization has members who possess IQs in the top 4% of the population. If IQs are normally distributed, with a mean of 100
murzikaleks [220]

Answer:

The minimum IQ score will be "126".

Step-by-step explanation:

The given values are:

Mean

\mu = 100

Standard deviation

\sigma=15

Now,

⇒ P(z>x)=4 \ percent \ i.e., 0.04

⇒ P(z>\frac{x- \mu}{\sigma} )=0.04

⇒ 1-P(z \leq \frac{x-100}{15})=0.04

⇒ \frac{x-100}{15}=z0.96

            =NORMDIS(z=0.96)

            =1.751

⇒ x=100+15\times 1.751

      =126.265 \ i.e., 126

7 0
3 years ago
What digit is in the tenths place in this number?<br><br> 748.59
Kamila [148]
5 would be the digit in the tenths place
4 0
3 years ago
Read 2 more answers
What’s five multiplied my seven?
jeyben [28]

Answer:

35 is the answer

Step-by-step explanation:

it just is yeyeye

4 0
3 years ago
Read 2 more answers
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