A=3.14r^2
1. 2^2= 4
2. 3.14 x 4 =12.56 as your answer
Answer: C
Step-by-step explanation:
1 + 2sin(x+pi)
1 is adding to the y, so it is a vertical shift of 1 unit,
2 is a stretch because it is multiplying to the <em>sin, </em>
and pi is adding to the x, so it is a phase shift.
Answer:
Andre would have more
Step-by-step explanation:
100 + (5x4) = 120
10 + (20x4) = 90
Answer: The initial population is 18 and 1 year(t=1) later it is 38
Step-by-step explanation:
38 = 18 * e^(1*k), where k is the growth rate
e^(1*k) = 38/18
Take the natural log(ln) of both sides of the = k = ln(38/18) = 0.747
P(t) = 18 * e^(0.747*t), where P(t) is the population affected at time t(years since 1996)
