B) -5.27
300 - 157.7 = 142.29
Jan 1st - Jan 28th = 27 days
142.29/5.27 = 27
I can't see the multiple choice do u mind doing another pic :| sorry
The answer is $380.
First find the area of the triangle. The area (A) of the triangle with base b and height h is:
A = b * h / 2
The width of the floor is the base of the triangle: b = 8 ft
The extension into the area is the height of the triangle: h = 10 ft
A = 8 * 10 / 2
A = 80/2
A = 40 ft²
The cost is $9.50/ft². So, the price of the white marble section is:
40 ft² * $9.50/ft² = $380
Answer:
12
Step-by-step explanation:
diameter is just radius times 2
hope this helps!
please mark me brainliest! thanks!
Answer: Hello there!
We know that the culture has 2000 bacteria initially (at t = 0 min), and it doubles when t = 40min, again at t = 80 min, and so on
And the rate of grouth is proportional to the population, then we can obtain an expression of the form:
P(t) = 2000*k(t) where k(t) is the factor that defines the growth of the population:
we know that:
p(0) = 2000*k(0) = 2000
p(40) = 2000*k(40) = 2000*2 = 4000
p(80) = 2000*k(80) = 2000*2*2 = 8000
etc
then we can see that k(t) = 2^(t/40)
where k(0) = 1, k(40) = 2, k(80) = 2*2, etc
then the function that models the population of the culture is:
p(t) = 2000*2^(t/40)
where t is in minutes.