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Sagot :
Answer:
hi hope this help and if its wrong you can blame
Step-by-step explanation:
The Osborne 1 is the first commercially successful portable microcomputer, released on April 3, 1981 by Osborne Computer Corporation. It weighs 10.7 kg (24.5 lb), cost US$1,795, and runs the CP/M 2.2 operating system
The approximate weight of a laptop in 2019 is 1.76 kg
The correct answer is an option (d)
What is percent?
"It is a number can be expressed as a fraction of 100."
What is the formula for exponential decay?
" [tex]f(t)=a(1-r)^t[/tex] where a is the initial value,
r is the rate of decay
and t is the time period."
For given question,
The initial weight of the laptop in 1981 (a) = 11 kg
The mass of laptops has decreased at an average rate of 4.7%
We can write above percentage as,
[tex]4.7\%\\=\frac{4.7}{100}\\ =0.047[/tex]
So, the rate of r = 0.047
We need to find the approximate weight of a laptop in 2019.
So the time period would be,
⇒ t = 2019 - 1981
⇒ t = 38
Using exponential decay formula,
[tex]\Rightarrow f(38)=11\times(1-0.047)^{38}\\\\\Rightarrow f(38)=11\times (0.953)^{38}\\\\\Rightarrow f(38)=1.76[/tex]
Therefore, the approximate weight of a laptop in 2019 is 1.76 kg
The correct answer is an option (d)
Learn more about the exponential decay here:
https://brainly.com/question/14355665
#SPJ2
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