Answer:
12
Step-by-step explanation:
You use pi times radius squared. Pi 15 squared=706.858 then take 706.858 and multiply it by the depth of 12. 706.858×12=8482.3 Cm squared. 8482.3 cm to liters is about 8.5 liters
Answer:
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Step-by-step explanation:
Answer:
Expected population in 2015: 19,152.58 or 19,000 people
Step-by-step explanation:
Given the decreasing rate of 2.5% per year, and a population of 28,000 in the year 2000:
We can solve for the rate of decrease by using the formula:

where:
A = population by year 2015
a = initial population (in year 2000) = 28,000
r = rate of change (decrease by 2.5% annually or 0.025)
t = time (in number of years) = 15
Plug in these given values into the formula:



A = 28,000(0.684)
A = 19,152.58 or about 19,000 people in 2015
Answer:
41. 32
42. -288
Step-by-step explanation:
plug in the letters.
41. -2^2-8= 32
42. -2 (3)^2 -(8) = -288