What is the domain of the function y = StartRoot x EndRoot + 4

Mathematics

2 answers:

damaskus [11]3 years ago

6 0

Answer:

third option !!!! 0 less-than-or-equal-to x less-than infinity

Step-by-step explanation:

Leviafan [203]3 years ago

3 0

Answer:

The domain of x for the given function, y = $\sqrt{x}$ + 4, in interval notation is [ 0, $\infty$ )

Step-by-step explanation:

The given function is y = $\sqrt{x}$ + 4

We cannot have square root of a negative number.

The minimum of x can be only 0.

The maximum of x can tend to $+\infty$ .

Therefore the domain of x in interval notation is [ 0, $\infty$ )

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Chad stop and fill the car with 11 gallons of gas he had driven 308 miles is in the previous 11 gallons of gas how many miles pe

Mrrafil [7]

308 miles per 11 gallons.

You need to find the amount of miles per 1 gallon.

dived the number of miles over gallons.

will look like:

miles
----------
gallons

it will look like for this problem

308
-------
11

308
-------- =28
11

28 miles per 1 gallon

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B2%7D%5E%7Bx%20%2B%202%7D%20-%20%20%7B2%7D%5E%7B%20x%20%2B%203%7D%20%7D%7B%2

weeeeeb [17]

I suppose you just have to simplify this expression.

(2ˣ⁺² - 2ˣ⁺³) / (2ˣ⁺¹ - 2ˣ⁺²)

Divide through every term by the lowest power of 2, which would be x + 1 :

… = (2ˣ⁺²/2ˣ⁺¹ - 2ˣ⁺³/2ˣ⁺¹) / (2ˣ⁺¹/2ˣ⁺¹ - 2ˣ⁺²/2ˣ⁺¹)

Recall that nª / nᵇ = nª⁻ᵇ, so that we have

… = (2⁽ˣ⁺²⁾ ⁻ ⁽ˣ⁺¹⁾ - 2⁽ˣ⁺³⁾ ⁻ ⁽ˣ⁺¹⁾) / (2⁽ˣ⁺¹⁾ ⁻ ⁽ˣ⁺¹⁾ - 2⁽ˣ⁺²⁾ ⁻ ⁽ˣ⁺¹⁾)

… = (2¹ - 2²) / (2⁰ - 2¹)

… = (2 - 4) / (1 - 2)