Tapatap tapatap tapatap ft.hindustani bhau
Answer:
Pretty sure that x would be positive 37.
Step-by-step explanation:
Answer:
The property that defines a perfect square trinomial is that the second term is 2 times the product between the squares of each square term.
Step-by-step explanation:
- Option A is true, <u>but is not a property,</u> is a condition of the definition of a perfect square trinomial
- Option B is true, <u>but is neither a property</u>, is also a condition of the definition of a perfect square trinomial.
- Option C is true, and is a property of the trinomial, because this property, is the one which allows to apply the defined simplification for a perfect square trinomial: [tex]a^2±2ab+b^2=(a±b)^2[tex/]
Answer:
Step-by-step explanation:
a) The equation relating A to the amount left of an initial amount Upper A 0 after time t is
A(t) = A0e^(kt)
b) It is found that 18 lb of A will reduce to 9 lb in 4.2 hr. It means that
A0 = 18
A = 9
t = 4.2
Therefore, substituting into the formula, it becomes
9 = 18e^(4.2k)
9/18 = e^(4.2k)
0.5 = e^(4.2k)
Taking ln of both sides of the equation, it becomes
Ln0.5 = ln e^(4.2k)
- 0.693 = 4.2k
k = - 0.693/4.2
k = - 0.165
The equation becomes
A(t) = 18e^(- 0.165t)
For A = 1(1 lb left), then
1 = 18e^(- 0.165t)
1/18 = e^(- 0.165t)
0.056 = e^(- 0.165t)
Taking ln of both sides, it becomes
Ln0.056 = ln e^(- 0.165t)
- 2.88 = - 0.165t
t = - 2.88/-0.165
t = 17.5 hours
After 17.5 hours, 1 lb would be left
Answer: bag of 50 penguins for 795.95.
Step-by-step explanation:
