Answer:
2 hours: 3968 <u>[I don't understand the $ sign in the answer box]</u>
At midnight: 12137
Step-by-step explanation:
The bacteria are increasing by 15% every hour. So for every hour we will have what we started with, plus 15% more.
The "15% more" can be represented mathematically with (1 + 0.15) or 1.15. Let's call this the "growth factor" and assign it the variable b. b is (1 + percent increase).
Since this per hour, in 1 hour we'll have (3000)*(1.15) = 3450
At the end of the second hour we're increased by 15% again:
(3450)*(1.15) = 3968.
Each additional hour add another (1.15) factor, If we assign a to be the starting population, this can be represented by:
P = a(1.15)^t for this sample that increase 15% per hour. t is time, in hours.
If a represents the growth factor, and P is the total population, the general expression is
P = ab^t
Using this for a = 3000 and b = 1.15, we can find the total population at midnight after starting at 2PM. That is a 10 hour period, so t = 10
P = (3000)*(1.15)^10
P = 12137
It is pretty simple
All you have to do is multiply 186 times .65 which you get 120.9
So that's all you have to do
9514 1404 393
Answer:
g(x) = 3x^2 -2
Step-by-step explanation:
Reflection in the y-axis replaces x with -x.
g(x) = f(-x) = 3(-x)^2 -2
g(x) = 3x^2 -2
_____
The given function is symmetrical about the y-axis, so its reflection is itself.
Answer:
<u>The correct answer is 35.4%</u>
Step-by-step explanation:
Let's check the information provided in the question:
Savings goal = US$ 2,000 for the club trip
Earnings for the candles selling = US$ 708
For calculating the accumulated percentage, we can do it this way:
Accumulated percentage = Earnings / Savings goal
Accumulated percentage = 708 / 2,000 * 100
Accumulated percentage = 0.354 * 100
<u>Accumulated percentage = 35.4%</u>
<u>Students at Maple School has accumulated 35.4% of their savings goal with the candles selling.</u>
Answer:
A
Step-by-step explanation:
Going from -7000 to +7000. The point is at +5200.
