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sesenic [268]
3 years ago
14

Imagine math I need help Algebra 2 Leave answers from left to right thank you

Mathematics
1 answer:
timurjin [86]3 years ago
4 0

Answer:

1. all negative real numbers

2. all real numbers

3. all real numbers except -3<= x <= 3

4. all real numbers between -3 and 3

Step-by-step explanation:

the domain is just asking you what are the possible x values for the given graph.

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How do I find the exact value of tan⁻¹(tan <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20%5Cpi%20%7D%7B5%7D%20" id="TexForm
zmey [24]
This is because \tan x is a multivalued function and is not invertible over its entire domain. We restrict its domain to the interval -\dfrac\pi2, which gives one complete branch of values (or one period). \dfrac{4\pi}5>\dfrac\pi2 and thus \dfrac{4\pi}5 is outside the domain.

A different way to go about this is to find the value of \tan\dfrac{4\pi}5 first, then compute the inverse tangent of that result. But finding the trigonometric values of multiples of \dfrac\pi5 is somewhat tricky and perhaps more work than is needed.

Instead, we can use a trigonometric identity to find the value of \tan whenever its argument falls outside the "standard" branch. 

We know that \tan(x\pm\pi)=\tan x (because \tan is \pi-periodic), so \tan\dfrac{4\pi}5=\tan\left(\dfrac{4\pi}5-\pi\right)=\tan\left(-\dfrac\pi5\right). And now the function can be inverted, so that

\tan^{-1}\left(\tan\dfrac{4\pi}5\right)=\tan^{-1}\left(\tan\left(-\dfrac\pi5\right)\right)=-\dfrac\pi5
6 0
3 years ago
2. Vanessa wants to model how a car's maintenance costs change as the distance someone drives the car increases. What would be a
boyakko [2]

Answer:

The answer is $/Miles

Step-by-step explanation:

  • If Vanessa wants to know hoy the car's maintenance costs change as the distance increases, she is analysing the cost of maintaining the car (wich is expressed in dollars , $), when the distance increases (which is measured in miles or metres, or some other distance measure).
  • Then, the appropiate units of measure for this problem are dollars (to represent the cost of maintenance) and miles (to represent the distance the car travels).
3 0
3 years ago
-40-2[(-8) / 2] please someone explain this how to do it
solmaris [256]

Step-by-step explanation:

just try this in calculator

3 0
2 years ago
the sale tax rate in Jans town is 7.5% if she buys 3 lamps for $23.59 each and a sofa for $769.99, how much sales tax does she o
masha68 [24]
 Cost of Lamps =
23.59*3= $70.77

Sofa = $769.99
Add them 
769.99+70.77
=840.76
Percentage 
7.5/100 *840.76
= 63.057

She owes $63.057 to sales tax
4 0
3 years ago
Please help thank you.
andre [41]
You have a rectangle and 2 triangles:
 rectangle =  12 *6 = 72

larger triangle on left, find the base: 
base = 6 / tan(45) = 6

area = 1/2 x b x h = 1/2 x 6 x 6 = 18

smaller triangle:
 area = 1/2 x b x h
1/2 x 2 x 6 = 6
 

total area:
  72 +6 +18 = 96 cm^2




5 0
3 years ago
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