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galina1969 [7]
3 years ago
5

If f(x) = 1 – x, which value is equivalent to |f(i)|?

Mathematics
1 answer:
lukranit [14]3 years ago
3 0
Determine which value is equivalent to | f ( i ) | if the function is: f ( x ) = 1 - x. We know that for the complex number: z = a + b i , the absolute value is: | z | = sqrt( a^2 + b^2 ). In this case: | f ( i )| = | 1 - i |. So: a = 1, b = - 1. | f ( i ) | = sqrt ( 1^2 + ( - 1 )^2) = sqrt ( 1 + 1 ) = sqrt ( 2 ). ANSWER IS C. sqrt( 2 )
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Nine and one half less than four and one half times a number is greater than 62,5. Which of the following represents
morpeh [17]

Answer: (16,O0) That is 16 to positive infinity

Step-by-step explanation:

4.5x - 9.5 > 62.5

4.5x > 62,5 + 9.5

4.5x > 72

x > 72/ 4.5

x> 16

So all real numbers greater than 16 is the solution set.

(16,O0)

I wish I had the infinity symbol on this keyboard!

7 0
3 years ago
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A square purple rug has a orange square in the center. The side length of the orange square is x inches. The width of the purple
Liono4ka [1.6K]

Answer:

578 + 48 square inches

Step-by-step explanation:

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And, the area of the orange square = side^2

The side would be = = 12 + 12 +x  = 24 + x

And, now the area would be = (x + 24)^2

Now the area of the orange band is

= Area of the orange square  area of the green square

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4 0
2 years ago
HELP ME PLEASE?? :( HELP ME
Crazy boy [7]
I really dislike long simplification times 4 questions so I will jsut put the answers on some of them

1. remember that the denomenator cannot equal zero so find what values will and restrict them
the answer is the third one or \frac{3}{(x+6)(x-1)}

2. second one
(3x-2)/(5x)

3. what you would do is factor the top and divide factors making ones
answer is the  fourth one or \frac{2(3x^{2}-7)}{2x^{2}+3}

4. find the LCM of the denoemators
4x and 2
4x=2 times 2 times x
2=2
LCM=4x
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ANSWERS:
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2. second
3. fourth
4. third
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3 years ago
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White raven [17]
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6 0
2 years ago
What is the slope of the line perpendicular to 2x-3y=8
Elanso [62]

Answer:

X=11/2

Step-by-step explanation:

2x=8+3

2x=11

x=11/2

5 0
2 years ago
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