Answer:
Correct answer: y- intercept is 200 for time x = 0 sec
y = 200 · (3/2)ˣ
The population after x = 10 minutes is: y = 11,533
Step-by-step explanation:
We see from the diagram that the initial bacterial count is 200 which is y-intercept
The formula for an exponential function is:
y = 200· aˣ
to find the basis a we read the second point (1, 300)
300 = 200 · a¹ => a = 300/200 = 3/2
the exact formula is
y = 200 · (3/2)ˣ
we verify the accuracy of the formula using the third point (2, 450)
450 = 200 · (3/2)² => 450 = 200 · 9/4 => 450 = 50 · 9 => 450 = 450
The population after x = 10 minutes is:
y = 200 · (3/2)¹⁰ = 200 · 57.665 = 11,533
y = 11,533
God is with you!!!
Answer:
The variable x is equal to 10 degrees.
Step-by-step explanation:
A triangle's angles, in total, must equal 180 degrees.
71 + 50 + (6x-1) = 180
71 +50 = 121
121 + (6x-1) = 180
6x - 1 = 59
6x = 60
x = 10
OK. <u>2 = -t² + 4t + 5</u>
Subtract 2 from each side: 0 = -t² + 4t + 3
Multiply the right side by -1 : 0 = t² - 4t - 3
Unfortunately, this can't be factored. The only other way I know
to find the solutions to a quadratic equation is with the use of the
quadratic formula. When you do that, you get these solutions:
t = 2 + √7 = about<em> 4.65</em>
and
t = 2 - √7 = about <em>-0.65</em> .
If this equation comes from a problem that involves real people throwing
real things into the air and making vertical motion, then you want only the
positive solution.
Answer:
Option C is correct
Step-by-step explanation:
<h3>Hope it is helpful...</h3>
The answer is A,because the way your question is written,there would be 4 molecules of salt (NA) and one molecule of CL (Chlorine)
