Answer:
<h2>
After 5 hours</h2>
Step-by-step explanation:
If a scientist counts 35 bacteria present in a culture and finds that the number of bacteria triples each hour and the function y = 35 ∙ 3x models the number of bacteria after x hours, in order to estimate when there will be about 550 bacteria in the culture we will substitute y = 550 into the modeled equation and calculate the value of x as shown;
If y = 35*3x
when y = 550
550 = 35*3x
Dividing both sides by 35;
550/35 = 35*3x/35
3x = 550/35
x = 550/3*35
x = 550/105
x = 5.24
This means that there will be 550 bacteria in the culture after approximately 5 hours
It must be ......................,..UH...............,,i don’t know
<h3>
Answer:</h3>
y = -4x +2
<h3>
Step-by-step explanation:</h3>
The slope-intercept form of the equation for a line is conveniently found from the point-slope form. In either case, you need to know the slope. That is ...
... slope = m = (change in y)/(change in x)
For the first two points, the slope is ...
... m = (-6 -(-2))/(2 -1) = -4
Using the point-slope equation for slope m and point (h, k) written as ...
... y = m(x -h) +k
we can substitute m = -4 and (h, k) = (1, -2) to get ...
... y = -4(x -1) -2
... y = -4x +2 . . . . . . . simplify
Answer:
14.99mm
Step-by-step explanation:
Answer:
7 is the answer you're looking for
