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MrRa [10]
3 years ago
7

How many bacteria will there be in 4.5 hours? In 5 hours?

Mathematics
1 answer:
aleksandrvk [35]3 years ago
4 0

Answer:

4.5 hours in minutes = 270

Every 45 minutes, bacteria triples

You start with 50

Divide 270 (total time) by 45 (every time bacteria triples)

270/45 = 6

36,450 bacteria

Step-by-step explanation:

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3 years ago
An object is dropped from a building and allowed to freefall to the ground. The height of the object over time is shown in the t
VikaD [51]

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8 0
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Read 2 more answers
Write the equation of the following graph in vertex form.
Marat540 [252]

Answer:

Correct choice is 2. f(x)=0.4(x+2)(x-5)

Step-by-step explanation:

We have been given a graph of the quadratic function. Now we need to use that graph to find the equation of the graph in vertex form. By the way given choices written in intercept form so to be accurate we are going to find the equation in intercept form.

from graph we see that x-intercepts are at 5 and -2.

we know that if x=a is x-intercept then (x-a) must be factor.

So (x+2)(x-5) is the factor.

when leading coefficient is positive then graph opens upward.

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6 0
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Answer:

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pochemuha

Answer:

\huge\boxed{x=18^o}

Step-by-step explanation:

Two angles are Complementary when they add up to 90°.

Therefore

x+4x=90\qquad|\text{combine like terms}\\\\5x=90\qquad|\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{90}{5}\\\\\boxed{x=18}

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