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.
Answer:
20
Step-by-step explanation:
If the two triangles are similar, then corresponding sides must share a constant ratio. This means that:
Let's use the second ratio:
Multiply both sides by 12:
Hope this helps!
Answer:
She gets
Step-by-step explanation:
She gets an error message because when solving a linear equation, the coefficient of the variable is not meant to be the same on both sides of the equation because it will equal 0 in the end. In this equation, you will get 4x on both sides and then the last step will be 0= 3. This is an error.
In order to find the temperature, you have to add -4 + 16. this would be C because negatives subtract. Hope you found this helpful!
Answer:
35
Step-by-step explanation:
Lisa will have 35 strips since 14÷0.4=35
