Answer:
11505 bacteria
Step-by-step explanation:
Given :
The bacteria in a certain culture triples every 7.7 hours. The culture has 6,500 bacteria at the start .
As per the exponential growth , we have
Here ,
is starting number of bacteria
R is rate at which number of bacteria increases
T is time elapsed
P is one period of rate
On putting these values in formula , we get
So, the culture will contain 11505 bacteria after four hours .
Theres a line with origin at (0,0) and ends in (3,-2)
because its known y and x apply
tan ∆= y/x
tan∆ = -2/3 = -0.6666
then ∆ = -33.68 degrees
Angle = 360° - 33.68 = 326.32 degrees
then tan 326.32= -.6666
cotan x = 1/ tanx= -1.5
sin 326.32 = -.554
Cosecx 1/sinx = -1.8050
cos 326.32= 0.8321
secx = 1/cosx= 1.2017
Answer:
80 square yards
Step-by-step explanation:
We know we have a width of 8 yards and a perimeter of 36.
how I figured it out was:
36=(8*2) * (x*2)
8*2=16
36-16=10
So now we know the length and width.
area of a rectangle is lw (length * width)
10*8=80.
X > 0
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