Hello,
answer B
f(-4)=-3*(-4)-7=12-7=5
Answer:
46 qt ma'am
Step-by-step explanation:
It will take 15 years for the population to quadruple
Step-by-step explanation:
The formula for continuously compounding rate is , where
- A is the future amount
- P is the initial amount
- r is the interest as a decimal
- t is the time in years
Assume that the initial population is P
∵ The initial population = P
∵ The growth rate = 9% ⇒ compounded continuously
∴ r = = 0.09
∵ The population will quadruple in t years
∴ A = 4P
- Substitute these values in the formula
∵
∴
- Divide both sides by P
∴
- Insert ㏑ to both sides
∴ ㏑(4) = ㏑( )
∵ ㏑( ) = n
∴ ㏑ (4) = 0.09 t
- Divide both sides by 0.09
∴ t = 15.4
∴ t = 15 years to the nearest whole number
It will take 15 years for the population to quadruple
Learn more:
You can learn more about the logarithmic function in brainly.com/question/11921476
#LearnwithBrainly
Answer:
Step-by-step explanation:
8) Take the cost that amelio spent-287.50 and multiply it by 0.15
287.50x0.15%=43.125.
Then, to figure out the cost he paid last year, subtract the 43.125 to ur original cost.
287.50-43.125=$244.375
9) 76.49x0.15%=11.4735
76.49+11.4735=87.9635
Hope this helps!