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kolezko [41]
3 years ago
13

Solve for the inverse of the following function: f(x)=4x-16

Mathematics
1 answer:
MatroZZZ [7]3 years ago
6 0
I think it’s (x+16)/4
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Trig: Which complex number's graph is shown?
Andrei [34K]

ANSWER

2 \sqrt{2} ( \cos( \frac{7\pi}{4}   + i  \sin(  \frac{7\pi}{4} ) )

EXPLANATION

The complex number shown has coordinates (2,-2)

or

z = 2 - 2i

The modulus is

|z|  =  \sqrt{ {2}^{2}  +  {( - 2)}^{2} }

|z|  =  \sqrt{ 8} = 2 \sqrt{2}

The argument is

\theta= \tan^{ - 1} ( \frac{ - 2}{2} )

\theta= \tan^{ - 1} ( -1) =  \frac{7\pi}{4}

The polar form is

2 \sqrt{2} ( \cos( \frac{7\pi}{4}   + i  \sin(  \frac{7\pi}{4} ) )

The first option is correct.

3 0
3 years ago
Someone help please I'm really stuck on these questions and I need help please I need to bring this in tomorrow please help
AysviL [449]
1) 1
2) PA: between 2 and 3.
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7 0
2 years ago
What is the distance between points (1, 4) and (9, 16)? round to the nearest tenth.
11Alexandr11 [23.1K]

Answer:

14.4 to nearest tenth.

Step-by-step explanation:

By the Pythagoras theorem:-

Distance = √ [ (y2-y1)^2 + (x2-x1)^2 ]   where  the 2 points are (x1,y1) and (x2,y2)

= √ [ (16-4)^2 + (9-1)^2]

= √ 208

= 14.4

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2 years ago
Lin opened a savings account that pays 5.25% interest and deposited $5000. If she makes no deposits and no withdrawals for 3 yea
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Answer:

$5829.57

Step-by-step explanation:

Annually compounding interest formula: PV(1+i)^t

5000(1+.0525)^3

5829.567266

which rounds to: 5829.57

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2 years ago
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