MATHEMATICS MIDDLE SCHOOL

If F(x)=x^3-2x^2, which expression is equivalent to f(I) -2+i,-2-i,2+i,2-i

Answers

Answer 1

Answer:

Hello from MrBillDoesMath!

Answer:

2 - i

Discussion:

Evaluate F(x) = x^3 - 2 x^2 when x = i.

i^2 = -1 for i^3 = i ( i^2) = i (-1) = -i

So F(i) = (i)^3 - 2 (i)^2

= -i - 2(-1)

= -i + 2

= 2 - i

which is the last answer shown

Thank you,

MrB

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Ho much lines of symmetry does a circle have?

Answers

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Help please! 15 points

Answers

Answer:

the answer is 23. even tho it says he had 30 at the time you must subtract 7 because thats what he started with. hope i could help! :D

Step-by-step explanation:

If the sphere shown above has a radius of 4 units, then what is the approximate volume of the sphere? A.
334.93 cubic units
B.
21.33 cubic units
C.
100.48 cubic units
D.
267.95 cubic units

Answers

Volume of the Sphere is D. 267.95 cubic units

Volume of a sphere can be found by multiplying the fraction of 4/3 to the Pi and the cube of the radius.

V = 4/3 * π * r³ where r = 4 units ; π = 3.14

V = 4/3 * 3.14 * 4³
V = 4/3 * 3.14 * 64
V = 4/3 * 200.96
V = 267.95 cubic units

Answer:

267.95

Step-by-step explanation:

cause it is,Trust

45 laptops out of 109 computer

Answers

Answer:

Here's how you write it:

109

Answer:

I think its sixty four.

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Answers

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How to solve 50 is 40% of what number

Answers

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