Question

The length of a rectangle is represented by the function L(x) = 4x. The width of that same rectangle is represented by the function W(x) = 7x^2 − 4x + 2. Which of the following shows the area of the rectangle in terms of x?

(L + W)(x) = 7x^2 + 2
(L + W)(x) = 7x^2 − 8x + 2
(L ⋅ W)(x) = 28x^3 − 16x^2 + 8x
(L ⋅ W)(x) = 28x^3 − 4x + 2

Answer 1

Area is length times width
\(A=lw\)

So,
\((4x)(7x^2 − 4x + 2)\)

Answer 2

Okay so it would look like this?
28x^3 - 16x + 2

Answer 3

Close, for -16x you forgot to add the exponents and then you forgot to multiply 4x and 2

Answer 4

so like 28x^3 - 16x^2 + (I thought you couldnt do that because the two doesnt have a x)

Answer 5

That is when adding, you are distributing here, so you're only really just multiplying

Answer 6

so it will be 8x?

Answer 7

brb dinner

Answer 8

Yes and okay

Answer 9

I´m back @dude

Answer 10

It would be C right? @dude

Answer 11

yes

Answer 12

Thanks @sillybilly123

Answer 13

When making your outline it is important to do all of the following except ____________.

Answer 14

Medium Spoon

Answer 15

Little Spoon

Answer 16

Big Spoon

Answer 17

Spoon

Answer 18

Span

Answer 19

Spain

Answer 20

Spoonish

Answer 21

Which is an invention that improved safety for railway passengers?

Answer 22

Span

Answer 23

Gracias a todos por la ayuda increu00edble. Lo guardo aquu00ed y veo quiu00e9n puede decir lo que digo.

Answer 24

Spanish

Answer 25

Span

Answer 26

FL

Answer 27

Spanish

Answer 28

Grammar for span

Answer 29

Spoonish Greemur

Answer 30

Spanish Grammar

Answer 31

spanish grammar

Answer 32

What needs to change about the following argument?

The Monday after Super Bowl Sunday should be a national holiday.