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3 years ago

What is the domain of f?

Mathematics

1 answer:

nalin [4]3 years ago

4 0

When we ask you the domain of f, you need to search for a forbidden value ?

for example you can't divide by zero, so assume x was equal to seven.

Then you would have f(7) = 7 / 7-7 = 7 / 0 this would be impossible because you can't divide by zero, yes ?

Other than that everything works, so the answer is c : all real values of x such that x ≠ 7

Good Luck

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During a concert, $3280 was received. A total of 760 people attended. Reserved seats were $6 and general admission seats were $4

Andre45 [30]

Answer:

The number of reserved seat is 120 and number of general seat is 640.

Step-by-step explanation:

Given,

Total number of seats = 760

Total collected Money = $3280

Solution,

Let the total number of reserved seat be x.

And the total number of general seat be y

Hence total number of seats is the sum of total number of reserved seat and the total number of general seats.

So the equation can be written as;

$x+y=760\ \ \ \ equation\ 1$

Again, total money collected is the sum of fees of one reserved seat times total number of reserved seat and fees of one general seat times the total number of general seats.

So the equation can be written as;

$6x+4y=3280\ \ \ \ \ equation\ 2$

Now, multiplying equation 1 by 4 and then subtract it from equation 2.

$4x+4y=3040$

$(6x+4y)-(4x+4y)=3280-3040\\\\2x=240\\\\x=\frac{240}{2}=120$

On substituting the value of x in equation 1, we get;

$x+y=760\\120+y=760\\y=760-120=640$

Thus the number of reserved seat is 120 and number of general seat is 640.

8 0

3 years ago

HELPPPP what do I do exactly ?

MAXImum [283]

Answer:

Step-by-step explanation:

Note that the squaring function and the square root function are inverses of one another. If we make a list of perfect squares, we get {1, 4, 9, 16, 25, ...}. Then the square roots of these numbers are {1, 2, 3, 4, 5, ... }.

Continue making a table of values to plot. The first row has x=0, y=0; this reflects that the sqrt of 0 is 0.

Fill the first (x-) column with perfect squares and the second (y-) column with the square roots of these perfect squares:

x y

0 0

1 1

4 2

9 3

and so on.

Now plot the following on the graph: (1,1), (4,2), (9,3), ....

Starting at (0,0) and moving to the right (indicating increases in x), plot these points. (You'll soon run out of room.) Draw a smooth curve from (0,0) to connect these points. The result is a graph of the square root function.

The domain of this function is "the set of all real numbers ≥0" and the range is the same: "the set of all real numbers ≥0"

4 0

3 years ago

Read 2 more answers

members of a cookie club are selling cookie's for $2.50 per box. their goal is to sell enough boxes to total at least $350 in sa

bearhunter [10]

Answer:

They would need to sell more than or equal to 140 boxes of cookies.

Step-by-step explanation:

The equation would be

2.50t >= 350

-------- -------

2.50 2.50

t >= 140

5 0

3 years ago

What are the factors of x2-144

padilas [110]

Answer:

(x+12)(x-12)

Step-by-step explanation:

4 0

3 years ago

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What graph represents number 17? (y - in; tercept = 1; t=1;slope= 1 2)

Fittoniya [83]

Answer:

The answer to this question is graph B

8 0

2 years ago