6. how is twice a number decrease by three is negative seven written as a question A. 2+×_3=7 B. 2×_3=7 C. ×2-3=7 D. (×-3)2=-7
1 answer:
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Answer:
Growth function.
The number of students enrolled in 2014 is 1162.
Step-by-step explanation:
The number of students in the school in t years after 2002 can be modeled by the following function:
In which N(0) is the number of students in 2002 and r is the rate of change.
If 1+r>1, the function is a growth function.
If 1-r<1, the function is a decay function.
In 2002, there were 972 students enrolled at Oakview High School.
This means that
Since then, the number of students has increased by 1.5% each year.
Increase, so r is positive. This means that
Then
Growth function.
Find the number of students enrolled in 2014.
2014 is 2014-2002 = 12 years after 2002, so this is N(12).
The number of students enrolled in 2014 is 1162.
Answer:
$7,986.25
Step-by-step explanation:
We can use the following formula to solve:
<em>P = principal value</em>
<em>r = rate (decimal)</em>
<em>t = time (years)</em>
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First, change 15% into a decimal:
15% -> -> 0.15
Since 2015 and 2020 are 5 years apart, we will use 5 for t. Now, plug the values into the equation:
Your car would be worth $7,986.25