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3 years ago

What are the domain and range of the function below?

Mathematics

2 answers:

jekas [21]3 years ago

6 0

Answer:

Domain: all real numbers

Range: all real numbers greater than or equal to -2

Step-by-step explanation:

The domain is the set of x-coordinates.

It is the set of real numbers since x can be any real number.

The range is the set of y-coordinates.

The minimum value for y is -2. y can be -2 or any real number greater than -2.

Answer:

Domain: all real numbers

Range: all real numbers greater than or equal to -2

musickatia [10]3 years ago

5 0

Answer:

C on Edge

Step-by-step explanation:

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Drag each value to the correct location on the table.

tatiyna

Answer:

Between 2 and 3: 3√101, 3√20, √7

Between 4 and 5: 3√90, √20

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3 years ago

A retailer who sells fashion boots estimates that by selling them for x dollars each, he will be able to sell 70−x boots each we

Marat540 [252]

Answer: $35 is the selling price and $1225 is the maximum revenue.

Step-by-step explanation:

Since we have given that

$R(x)=-x^2+70x$

We need to find the maximum revenue.

So, We will first derivative it w.r.t. x.

So, it becomes,

$R'(x)=-2x+70$

Now, we will find critical points.

So, R'(x) = 0

So, it becomes,

$-2x+70=0\\\\-2x=-70\\\\x=\dfrac{70}{2}=35$

Now, to check whether it yields maximum revenue or not.

So, second derivative w.r.t. x, we get that

R''(x) = -2<0

So, At $35, it yields maximum revenue.

Amount of maximum revenue would be

$R(35)=-(35)^2+70\times 35=-1225+2450=\$1225$

Hence, $35 is the selling price and $1225 is the maximum revenue.

7 0

3 years ago

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Triss [41]

Answer:

x = √21, x = -√21

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3 years ago

Yuson must complete 45 hours of community service. She does 3 hours each day. Which linear equation represents the hours Yuson h

Daniel [21]

Answer:

y=45-3x

Step-by-step explanation:

we want y, which is the number of hours left. to find this, we take:

hours left=total # of hours required - hours worked/day

so:

y=45-3x

(because x could be any number: 2 days, 3 days, etc.)

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3 years ago

Which word is the antecedent of the underlined pronoun?

Dmitriy789 [7]

The antecedent for both the possessive adjective 'their' and the objective personal pronoun 'them' is children<span>.</span>

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3 years ago