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3 years ago

How can -6 1/3 be expressed as the sum of it's integer and fractional parts?

Mathematics

2 answers:

kumpel [21]3 years ago

7 0

Answer:

bottom left: -6 + (-1/3)

Step-by-step explanation:

hope this helps :)

Minchanka [31]3 years ago

5 0

It’s -6 + (-1/3) I think :)

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allochka39001 [22]

C=16h-10. 16 times hours minus 10

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3 years ago

The concentration C (in mg/dl), of an antibiotic in a patient’s bloodstream per hour, t, is given by: c(t) = (50t)/(t^2+25) In o

NARA [144]

Answer:

Step-by-step explanation:

<u>Functions </u>

The problem describes a function that expresses the concentration of an antibiotic in mg/dl vs time in hours as:

$\displaystyle c(t)=\frac{50\ t}{t^2+25}$

We need to find the first value of t such that

$\displaystyle c(t)\geq 4$

It means that

$\displaystyle \frac{50\ t}{t^2+25}\geq 4$

Operating with the inequality

$\displaystyle 50\ t\geq 4\ t^2+100$

Rearranging and dividing by 2, we have a polynomial inequality:

$\displaystyle 2t^2-25t+50\leq 0$

Factoring

$\displaystyle 2(t-10)\left (t-\frac{5}{2}\right )\leq 0$

There are two possible values for t, both valids because they are positive

$\displaystyle t=\frac{5}{2}=2.5, \ t=10$

We need to find the first value, i.e.

$t=2.5 \ hours$

Now for the graphic method, we plot the graph for the function and a horizontal line at c=4 to find the values of t.

The graph is shown in the image provided below. We can see both values where the funcion and C=4 intersect. Both values coincide with the previously analitically found values

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4 years ago

HELP HELP ASAP!!!!!!!!!!!!!!!!!!!!

Keith_Richards [23]

Answer:

You don't need help you got this

Step-by-step explanation:

no you don't got this now do your work and stop reading this bye :)

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3 years ago

A population culture begins with 15 strands of bacteria and then doubles every 4 hours. This can be modeled as 15(2)t/4, where t

MrRissso [65]

Answer:

It should be 120 because it’s doubles 3 times

Step-by-step explanation:

Since every 4 hours it doubles and 4 times 3 is 12 you double the strand 3 times giving you 120

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3 years ago

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Tomtit [17]

Answer:

1728

Step-by-step explanation:

There are 12 numbers that can be used for the first number; 12 for the second number; and 12 for the third number. This means there are a total of

12(12)(12) = 1728 combinations.

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3 years ago

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