B(t)=50×e^2.5t
e^2.5t = 20
t= ln(20) / 2.5
set B(t)=1000 and solve for t via 1000=50e2.5t
20=e2.5t
ln(20)=2.5t
t=ln(20) / 2.5
Answer:
B. 3(a + 7) + 3/(a + 2)
Step-by-step explanation:
Just substitute (a+2) in for every (x) in the equation:
f(a + 2) = 3 ((a + 2) + 5) + 4/(a+2)
= 3 (a + 7) + 4/(a+2)
Answer:
The answer is B. No only Zack will finish.
Step-by-step explanation:
Answer:the 1st one is x=√66 or x=−√66 2nd is x=0 or x=8
Step-by-step explanation:
21 is a composite number. 21 = 1 × 21 or 3 × 7. factors of 21: 1, 3, 7, and 21.
