Mathematics: A movie poster is 3 feet wide and 5 feet tall. A-frame shop charges $0.49 per foot for a black metal frame. How much would it cost to buy a black metal frame for the movie poster?

A movie poster is 3 feet wide and 5 feet tall.

Ответ:

taylahflynn5123

31.03.2021

Mathematics

$7.84
Explanation:
P=s+s+s+s
P=5+5+3+3
P=16ft
$0.49x16ft=$7.84

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Ответ:

622ghernandezc

18.10.2020

Mathematics

$f(x)=x^2\\\\\dfrac{f(x+h)-f(x)}{h}=\dfrac{(x+h)^2-x^2}{h}\\\\=\dfrac{x^2+2xh+h^2-x^2}{h}=\dfrac{2xh+h^2}{h}\\\\=\dfrac{h(2x+h)}{h}=\boxed{2x+h}$

Used:
(a + b)² = a² + 2ab + b²

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A movie poster is 3 feet wide and 5 feet tall. A-frame shop charges $0.49 per foot for a black metal frame. How much would it cost to buy a black metal frame for the movie poster?

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