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3 years ago

Is the sequence arithmetic? If so, identify the common difference.

Mathematics

1 answer:

aniked [119]3 years ago

5 0

Answer:

Step-by-step explanation:

subtract 22 by 17

subtract 33 by 22

subtract 46 by 33

you get a different answer every time

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Can someone answer it

Troyanec [42]

Answer what? This question? Oh, I'm answering it right now. Did you have another question out? Well, I can't see it.

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3 years ago

Solve 7x/3<2 {X I X<6/7} {X I X>6/7} {X I X<-14/3} {X I X>-14/3}

Vladimir79 [104]

Answer:

x<6/7

Step-by-step explanation:

7 0

3 years ago

7m -- 4 for m = 8 Evaluate the following algebraic expression

arsen [322]

I don’t understand the question
If you mean
7m-4
M=8, this is the solution
7(8)-4
56-4
=52
But if you mean
7m- - 4
As in - + - = +
Then this is your answer
7(8)+4
56+4
=60

7 0

3 years ago

A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat

Marizza181 [45]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.04$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

5 0

3 years ago

Can someone plz help me I’m being timed!!!!

nikklg [1K]

Answer:

49 and 58

Step-by-step explanation:

pls brainliest

7 0

2 years ago

Read 2 more answers