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anonymous
 one year ago
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) = 7x2 − 4x + 2. Which of the following shows the area of the rectangle in terms of x?
(L + W)(x) = 7x2 + 2
(L + W)(x) = 7x2 − 8x + 2
(L ⋅ W)(x) = 28x3 − 16x2 + 8x
(L ⋅ W)(x) = 28x3 − 4x + 2
anonymous
 one year ago
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) = 7x2 − 4x + 2. Which of the following shows the area of the rectangle in terms of x? (L + W)(x) = 7x2 + 2 (L + W)(x) = 7x2 − 8x + 2 (L ⋅ W)(x) = 28x3 − 16x2 + 8x (L ⋅ W)(x) = 28x3 − 4x + 2

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Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2area = length*width = L(x)*W(x) so just multiply the two functions together

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So (4x)7x2 − 4x + 2 ?

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2be careful with parentheses (4x)(7x^24x+2)

Vocaloid
 one year ago
Best ResponseYou've already chosen the best response.2now distribute the 4x
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