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Korolek [52]
3 years ago
6

What is the domain of the function? y=3√x-1

Mathematics
1 answer:
geniusboy [140]3 years ago
3 0
X - 1 is inside a cubic root.
The cubic root of a positive number is positive.
The cubic root of zero is zero.
The cubic root of a negative number is negative.
That means that the cubic root of any real number is also a real number.
The domain is all real numbers.
Answer: Choice A.
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If a rectangle is 5 units wide and x units high what is its perimeter?
Dominik [7]

Answer:

  10 +2x

Step-by-step explanation:

Put the given values into the perimeter formula and simplify.

  P = 2(L+W)

  P = 2(5 + x)

  P = 10 +2x . . . . the perimeter of the rectangle in units

5 0
3 years ago
Select the best equation needed to solve for x; then solve for x:
Lena [83]

Answer:

x=28 or C

Step-by-step explanation:

The graph shows a right angle which is 90 degrees

This means that the two angles seperated by line C added together will get 90 degrees.

That means the formula will be 2x+1+33=90

With that shown we can get rid of A and B

Next step is to add 33 and 1 together

This gives us 2x+34=90

Then we will move 34 to the other side by subtracting giving us 2x=90-34

Then we will subtract 90-34 which will get us 56

The equation is now 2x=56

The last step is to devide 2 from each side

This lets us get the answer x=28

Hope this helps!

4 0
4 years ago
Read 2 more answers
What is the answer to this problem? giving 25 points to whoever tells me!
Valentin [98]

AB is half AC therefore BC is 10 ft

Use Pythagorean theorem.

(8)^2 + (10)^2 = c^2. Square the left side

164 = c^2. Take the square root of both sides

√(164) = c

EC = √(164).

4 0
4 years ago
3<br> 4<br> x<br> +<br> 6<br> =<br> 1<br> +<br> 1<br> 3<br> x
torisob [31]

Answer:

\boxed{x = -5/21}

Step-by-step explanation:

<em>Hey there!</em>

To simplify we need to combine like terms and use the communicative property,

34x + 6 = 1 + 13x

-13x to both sides

21x + 6 = 1

-6 to both sides

21x = -5

Divide both sides by 21

x = -5/21

<em>Hope this helps :)</em>

5 0
3 years ago
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Scott has 25 baseball cards in his collection. On his birthday, Scott’s grandfather gives him his collection of 100 baseball car
Vladimir [108]

Scott starts with 25 plus the 100 from his grandfather making 125 then subtract 50 that he traded so you get 75

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3 years ago
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