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Brilliant_brown [7]
3 years ago
13

What model describes the relationship between the amount of bacteria and time, given that the bacteria triple every two hours?

Mathematics
1 answer:
bogdanovich [222]3 years ago
7 0
Y=3X whereas Y is the total number of bacteria and X is the number of hours that have passed.
You might be interested in
How many solution does this linear system have 2x-y=7 y=2x+3
Arisa [49]

Answer:

NO SOLUTION

Step-by-step explanation:

We can make this problem easier to understand if we write the system vertically:

2x-y=7

y=2x+3

and then rewrite the first problem in the form y = mx + b:

2x-y=7   ↔    y + 7 = 2x   ↔  y = 2x + 7

y=2x+3

Note how these two equations have the same slope, but different y-intercepts.  This tells us that the two lines are parallel, which in turn tells us that they never intercept one another.

Thus, this system has NO SOLUTION.

8 0
3 years ago
What are the solutions of the equation 9x4 – 2x2 – 7 = 0? Use u substitution to solve.
Debora [2.8K]

Answer:

the answer is 25

Step-by-step explanation:

and you get it by multiplying 9×4 keep the answer on paper then do 2×2 which is 4 subtract the two answers and subtract 7 and then you get 25, your welcome

6 0
3 years ago
Read 2 more answers
In the equation y=2x+1, what is the y-intercept (b)
Scrat [10]

Answer:

1 because 2x is the slope, so 1 should be the y-intercept

3 0
3 years ago
Read 2 more answers
9x-4=5x+6<br><img src="https://tex.z-dn.net/?f=9x%20-%204%20%3D%205x%20%2B%206" id="TexFormula1" title="9x - 4 = 5x + 6" alt="9x
wlad13 [49]
9x-4=5x-6
    +4    +4
 9x=5x-2
-5x-5x

4x=-2
divide by 2 on both sides
x=-2 or
x= 4/9
7 0
4 years ago
Factor completely 3X^2 -25​
Dominik [7]

In order to factor a polynomial, you have to find its roots

x_1,\ x_2,\ldots,x_n

So that you can factor it as

p(x)=(x-x_1)(x-x_2)\cdots(x-x_n)

So, in this case, we're looking for the solutions of

3x^2-25=0 \iff 3x^2=25 \iff x^2 = \dfrac{25}{3} \iff x=\pm\sqrt{\dfrac{25}{3}}=\pm\dfrac{5}{\sqrt{3}}

So, the polynomial can be written as

3x^2-25 = \left(x-\dfrac{5}{\sqrt{3}}\right)\left(x+\dfrac{5}{\sqrt{3}}\right)

5 0
4 years ago
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