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3 years ago

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Mathematics

2 answers:

djverab [1.8K]3 years ago

8 0

Answer:

The y-axis is the correct answer.

dezoksy [38]3 years ago

4 0

Answer:

The axis of symmetry is x=6

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Determine if the card below represents a reflection over the x-axis or a

gtnhenbr [62]

Answer:

Reflection over y-axis

Step-by-step explanation:

We know that with a reflection of the x-axis, we flip the value of the y value

But since the y-values in Q3 and Q4 are both negative, we know that can't be the case

So it has to be a reflection over the y-axis where the x-values are flipped

Hope this helps

7 0

3 years ago

Harman [31]

Answer: an improper fraction

Step-by-step explanation: An improper fraction is a fraction that is larger than 1 7/3 is larger than one because 7, the numerator is larger than the denominator so 7/3 is an improper fraction

3 0

2 years ago

HELP ME PLEASE!!!

Doss [256]

The 5 values needed are:
Min, Q1, Q2, Q3, Max
Order the data:
2, 3, 4, 9, 11, 12, 17, 18
Min= 2, Q1= 3.5, Q2=10, Q3= 14.5, Max=18

8 0

3 years ago

The total number of people at a football game was 5600. Field-side tickets were 40 dollars and end-zone tickets were 20 dollars.

rewona [7]

Answer:

1100 field-side tickets and 4500 end-zone tickets.

Step-by-step explanation:

Let x represent number of field side tickets and y represent number of end-zone tickets.

We have been given that the total number of people at a football game was 5600. We can represent this information in an equation as:

$x+y=5600...(1)$

$y=5600-x...(1)$

We are also told that Field-side tickets were 40 dollars and end-zone tickets were 20 dollars.

Cost of x field side tickets would be $40x$ and cost of y end-zone tickets would be $20y$ .

The total amount of money received for the tickets was $134000. We can represent this information in an equation as:

$40x+20y=134000...(2)$

Upon substituting equation (1) in equation (2), we will get:

$40x+20(5600-x)=134000$

$40x+112000-20x=134000$

$20x+112000=134000$

$20x+112000-112000=134000-112000$

$20x=22000$

$\frac{20x}{20}=\frac{22000}{20}$

$x=1100$

Therefore, 1100 field side tickets were sold.

Upon substituting $x=1100$ in equation (1), we will get:

$y=5600-1100$

$y=4500$

Therefore, 4500 end-zone tickets were sold.

3 0

3 years ago

Carmelo is selling his hockey and baseball card collection. Hockey cards, x, sell for $0.03 and baseball cards, y, sell for $0.0

svlad2 [7]

Answer:

$28.50 is the answer

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers