Answer:
there is no picture so I dont know what i have to do..
Answer: 4 years
Step-by-step explanation:
A(0) has to be amount at start. Assume that's 5mg
Then A(t) = 5×(0.5)^(0.25t) = 5×2^(-t/4),
(also known as 5 exp(-λ t) with λ = ln(2)/4, incidentally).
We need to such that A(t) = 2.5mg, or 2^(-t/4) is 1/2, which happens when -t/4 is -1, or t is 4.
lines a and d are parallel and lines b and c are parallel
Answer:
w=4
Step-by-step explanation:
adding a negative is like subtracting so w=11-7
Step-by-step explanation:
The vertex is the point (-4, 7).