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Reil [10]
3 years ago
12

What is the domain and range of f(x)=x

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
5 0

The domain is all real numbers. The range is all real numbers.

The only thing that restricts the domain of an equation is when we are dividing by 0 or have a negative under the square root. Since there is no division sign or square root, we no there is no domain restrictions.

Also, since the range is the exact same as the domain (since f(x) is equal to x), we know the range also have no restrictions.

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You have two spinners
dem82 [27]

Answer:

There is a \frac{1}{12} chance of the spinner landing on red, then three.

Step-by-step explanation:

So the first one has a \frac{1}{4} chance, since there are four possibilities.

The second one has a \frac{1}{3} chance, since there are three possibilities.

So, we just need to combine them.

\frac{1}{4} *\frac{1}{3} =\frac{1}{12}

Have a nice day. Please mark brainliest!

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How many time does 16 go into 4
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4 can go into 16 4 times
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5. Ms. Brown's flight left at 9:20 A.M. Her plane landed 1 hour and 23 minutes later. What time did her plane land?
Eva8 [605]

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the plane landed at 10:43 A.M

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3 years ago
Can Someone help me in this?
My name is Ann [436]

Answer:

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Step-by-step explanation:

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2 years ago
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A gardener wants to create a rectangular vegetable garden in a backyard. She wants it to have a total area of 120 square feet, a
erastova [34]
Comment
This is an area problem. The key words are 120 square feet and 12 feet longer.
And of course width is a key word when you are reading this.

Formula
Area = L * W

Givens
W = W
L = W + 12

Substitute and Solve
Area = L* W
120 = W*(W + 12)
W^2 + 12W = 120 square feet
w^2 + 12w - 120 = 0

This does not factor easily. I would have thought that a graph might help but not if the dimension has to be to the nearest 1/100 of a foot. The only thing we can do is use the quadratic formula.

a = 1
b = 12
c = - 120

w = [ -b +/- sqrt(b^2 - 4ac) ]/(2a)
w = [-12 +/- sqrt(12^2 - 4*(1)(-120)] / 2*1
w = [-12 +/- sqrt(144 - (-480)]/2
w = [-12 +/- sqrt(624)] / 2
w = [- 12 +/- 24.979992] / 2 The minus root has no meaning whatever.
w = (12.979992) / 2
w = 6.489995 I'll round all this when I get done

L = w + 12
L = 6.489995 + 12
L = 18.489995

check
Area = L * W
Area = 6.489995*18.489995
Area = 119.999935 The difference is a rounding error

Answer
L = 18.489995 = 18.49 feet
W = 6.489995 = 6.49 feet

Note: in the check if you round first to the answer, LW = 120.0001 when you find the area for the check. Kind of strange how that nearest 1/100th makes a difference.
5 0
3 years ago
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