A rectangle has a length of 12 mm and a width of 15 mm. Which statement best describes the change in the

Mathematics

1 answer:

charle [14.2K]3 years ago

4 0

Answer:

perimeter of original rectangle *1/3 = perimeter of new rectangle

Step-by-step explanation:

The rule for perimeter is multiply by the scale factor

perimeter of original rectangle * scale factor = perimeter of new rectangle

perimeter of original rectangle *1/3 = perimeter of new rectangle

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NEED QUICK HELP.

Andrew [12]

Hello!

The equation for an exponential deprecation model like this is $y = a(1-r)^{x}$ , where a is the starting value, x is the number of years passed, and r is the amount the value deprecates each year.

We know what a and r are: a = 1600, as that is the original cost of the computer, and r = .18, as that's how much it decreases by. Substitute these two into the equation.

We get $y = 1600(1-.18)^{x}$ . Now, subtract 1 - .18 to get our final answer.