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3 years ago

What is the area of a rectangle with side lenghts 3x+2 and x-4

Mathematics

1 answer:

melamori03 [73]3 years ago

6 0

For a rectangle, A = LW.

A = (3x + 2)(x - 4)

A = 3x^2 - 12x + 2x - 8

A = 3x^2 -10x - 8

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PLSS WHAT IS THE ANSWER

Ket [755]

It’s negative by the looks of it.

If you solve it you get -2.5

I hope it’s correct!

6 0

2 years ago

Read 2 more answers

The value -2 is a lower bound for the zeros of the function shown below.

Tju [1.3M]

Answer:

False

Step-by-step explanation:

f(x) = 4x³ - 12x² - x + 15

Set output to 0.

Factor the function.

0 = (x + 1)(2x - 3)(2x - 5)

Set factors equal to 0.

x + 1 = 0

x = -1

2x - 3 = 0

2x = 3

x = 3/2

2x - 5 = 0

2x = 5

x = 5/2

-2 is not a lower bound for the zeros of the function.

7 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

Which expression represents the word phrase the product of 3 and 6 more than a number? 3(x+6) 3(6−x) 3x + 6 I don't know.

dezoksy [38]

Answer:

3(6+x)

Step-by-step explanation:

product of 3 and 6 more than a number

6 more than a number = y

y = (6+x)

3(6+x)

PLEASE GIVE BRAINLIEST

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3 years ago

The diameter of the base of

Vesna [10]

V= 1/3 pi r^2h
Find the radius
r=d/2
r=8/2
r= 4

V= 1/3 pi (4)^2•6

V=32pi or 100.53

7 0

3 years ago