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polet [3.4K]
1 year ago
15

Which function has a domain of all real numbers?

Mathematics
1 answer:
Aliun [14]1 year ago
8 0

Answer:

D

Step-by-step explanation:

( {2 x})^{ \frac{1}{3} }  - 7 =  \sqrt[3]{2x}  - 7

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Which statement describes the end behavior of the exponential function f(x) = 2x – 3?
charle [14.2K]
The <u>correct answer</u> is:

As x→-∞, y→-3.
As x→∞, y→∞.

Explanation:

As our values of x get further into the negative numbers, the value of 2ˣ will approach 0.  This is because raising a number to a negative exponent "flips" the number below the denominator and raises it to a power; we end up with smaller and smaller fractions, eventually so small that they nearly equal 0.  

This will make the value of the function 0-3=-3.

As x gets larger and larger (towards ∞), the value of y, 2ˣ, continues to grow as well.  Since it continues to grow exponentially, we say the value approaches ∞.
3 0
3 years ago
Read 2 more answers
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Alex

Answer:

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Step-by-step explanation:

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3 years ago
A cell phone store sells the basic model of a phone for $30 and the upgraded model for $100 when a customer signs a two-year agr
mixer [17]
<span>You need to set up 2 equations for this, a system to be exact let x represent the cheaper phone and y represent the upgraded phone for store costs you will have 5x+25y=200 for selling prices you will have 30x+100y=900 set these two equations together 5x+25y=200 30x+100y=900 multiply the first one by -4 and add them -20x-100y=-800 30x+100y=900 10x=100 x=10 10 cheaper phones, plug into any equation again 5(10)+25(y)=200 y=6<<<6 upgraded phones</span>
3 0
3 years ago
Help me i need help asap
olganol [36]

Answer:

6.5

Step-by-step explanation:

when a negative is multiplied by a negative it in turns turns into a positive...hence 2+4.5

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Step-by-step explanation: I hope this helped!

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