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3 years ago

12

A provider order is written for insulin at 3 units/hr; the premixed solution is composed of 50 units of insulin in 100 mL in nor

mal saline. At which rate (mL/hr) should the infusion run?

2 answers:

Georgia [21]3 years ago

6 0

Answer:

the rate should be 6ml/hr

Step-by-step explanation:

if 100 ml of solution have 50 units each ml has 0.5 units, (50/100)

so in order to get 3 units in one hour the equation would be

number of units = units per mililiter * number of mililiters in an hour

3 = 0.5 * x

x= 3 / 0.5 = 6ml/hr

anzhelika [568]3 years ago

5 0

Answer:

<h2>6.6 mL/hr.</h2>

Step-by-step explanation:

Here we have to use the rule of three.

If 50 units of insulin comprehend 100 mL, then 3 units how much mL would be:

$3units\frac{110mL}{50units}=6.6 mL$

This means that 3 units per hour, would be 6.6 mL per hour.

Therefore the answer is 6.6 mL/hr.

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Weight of a rock: In a geology course, students are learning to use a balance scale to accurately weigh rocks. One student plans

dusya [7]

Answer:

The first student, with 20 measurements, will have the more precise interval due to the larger sample size.

Step-by-step explanation:

Margin of error of a confidence interval:

The margin of error of a confidence interval has the following format:

$M = z\frac{s}{\sqrt{n}}$

In which z is related to the confidence level, s to the standard deviation and n to the sample size.

The margin of error is inversely proportional to the square root of the sample size, which means that a larger sample will lead to a lower margin of error, that is, to a more precise interval.

In this question:

One student will use 5 measurements, other 20. The first student, with 20 measurements, will have the more precise interval due to the larger sample size.

5 0

2 years ago

I will give brainliest

mariarad [96]

Answer:

1. I need to see the table to answer that

2. I think you need to find the probability of getting 1, H. That probability is 1/10 which is also 10%.

3. can't answer a, but b is 1/14 or 7%

4. as a fraction= 1/6

as a percent= 17% (rounded up)

Step-by-step explanation:

2. I just took the outcome needed and decided by the possible outcomes.

3. That was a compound event so I just got the probability of flipping tails (1/2) and multiplied it by the probability of getting a white ball (1/7)

4. another compound event, I got the probability of getting a medium (1/3) and multiplied it by getting yellow (1/2)

hope this helped!

3 0

2 years ago

Will someone help me with 4 I don't understand it

Maurinko [17]

They are not equivalent expression because 3^2 is 9 since 3*3 is 9 but 3*2 is 6, so the expressions are not equivalent. <span />

5 0

3 years ago

Please solve this for me!

tatuchka [14]

Step-by-step explanation:

To find the slope between two given points you use the equation:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

(8,10) are $(x_{1},y_{1})$

(16,24) are $(x_{2},y_{2})$

After that you just plug in:

$m=\frac{24-10}{16-8}$

$m=\frac{14}{8}$

Simplify:

<h2><u><em></em></u> $m= \frac{7}{4}$ <u><em></em></u></h2>

Answer:

The slope is $\frac{7}{4}$ for #1

7 0

2 years ago

Is the graph of y = sin(x^4) increasing or decreasing when x = 10? Is it concave up or concave down?

Tanzania [10]

$y=\sin(x^4)$
$\implies y'=4x^3\cos(x^4)$
$\implies y'=12x^2\cos(x^4)-16x^6\sin(x^4)$

At $x=10$ , you have

$y'(10)=4000\cos(10^4)$

The trick to finding out the sign of this is to figure out between which multiples of $\dfrac\pi2$ the value of $10^4$ lies.

We know that $\cos x>0$ whenever $-\dfrac\pi2+2n\pi$ , and that $\cos x$ whenever $\dfrac\pi2+2n\pi$ , where $n\in\mathbb Z$ .

We have

$10^4=\dfrac{k\pi}2\implies k=\dfrac{2\times10^4}\pi\approx6366.2$

which is to say that $\dfrac{6366\pi}2$ , an interval that is equivalent modulo $2\pi$ to the interval $\left(\pi,\dfrac{3\pi}2\right)$ .

So what we know is that $10^4$ corresponds to the measure of an angle that lies in the third quadrant, where both cosine and sine are negative.

This means $y'(10)$ , so $y$ is decreasing when $x=10$ .

Now, the second derivative has the value

$y'=12\times10^2\cos(10^4)-16\times10^6\sin(10^4)$

Both $\cos(10^4)$ and $\sin(10^4)$ are negative, so we're essentially computing the sum of a negative number and a positive number. Given that $\sin x>\cos x$ for $\pi$ , and $\cos x>\sin x$ for $\dfrac{5\pi}4$ , we can use a similar argument to establish in which half of the third quadrant the angle $10^4$ lies. You'll find that the sine term is much larger, so that the second derivative is positive, which means $y$ is concave up when $x=10$ .

5 0

2 years ago