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Lunna [17]
3 years ago
10

(Retry) Which of the following simplifies to a negative number? -- It isn't C, apparently.

Mathematics
1 answer:
Simora [160]3 years ago
5 0

Answer:

The answer would be A, -4^{-4}

Step-by-step explanation:

Remember, x^{-n} ≠ -x^{n}, x^{-n} = \frac{1}{x^{n} }.

a = -4^{-4} = -(4^{-4})

a = -\frac{1}{4^{4} }

a = -\frac{1}{256}

-\frac{1}{256} is negative

-\frac{1}{256} = -4^{-4}, so -4^{-4} is negative

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8 0
2 years ago
(PLEASE HELP) The table below - does it represent an exponential function?
Aliun [14]
Short answer: I don't know, but that doesn't mean I can't give you something that you can decide for yourself.
y = 4*2^(2n - 2) is the pattern.
Go for broke. Try n = 4. You should get 256. Let's try it.
y = 4 * 2^(2*4 - 2)
y = 4 * 2^(8 - 2)
y = 4 * 2^6
y = 4 * 64
y = 256 yup it works.

The other end is just as important. Suppose n = 1
Then y = 4 * 2^(2*1 - 2) = 4 * 2^0 = 4*1 = 4 Both work.

If this formula is correct, we can abbreviate it to make your task easier.
y = 4 * 2^(2n - 2)
y = 2^2 * 2^(2n - 2)
y = 2^(2n - 2 + 2)
y = 2^(2n) Now try the two end points again.

n = 4
y = 2^(2*4)
y  =  2^8
y = 256

n = 1
y = 2^(2*1)
y = 2^2
y = 4 which again checks.

so y = 2^(2n) I think is an exponential function.
Sorry my explanation is so long.

6 0
3 years ago
12 + x/4 = 9<br> Simplify Plz need ASAP
agasfer [191]

Answer: X = -12

Step-by-step explanation:  1)  12 + x/4 = 9

                                              2)  12 + x/ 2^2 = 9

                                              3)   x/ 2^2  + 12 = 9  

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choli [55]

Answer:

( 2 - x )^2

Step-by-step explanation:

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Neko [114]

Answer:

Firstly you have to know the x and y points,

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Hopefully this helps :)

8 0
2 years ago
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