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3 years ago

I have alg 2 midterms tomorrow, does anyone know a good site to study?

2 answers:

7 0

Yes the notes you took in class and friends from class as well sites to study from wont help as much and we don't know what part of alg 2 you're on.

Kisachek [45]3 years ago

7 0

Um for me I like to use
- https://www.khanacademy.org/math/algebra2
- www.regentsprep.org/Regents/math/algtrig/math-algtrig.htm
- www.classzone.com › Algebra 2

Hope this helps (:
❤❤❤Please mark as Brilliant ❤❤❤
- A

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Ifthe fish commission states that the mean length of all fish in spring run is mean =15cm,withthe standard deviation of variance

Andrei [34K]

Answer:

Step-by-step explanation:

z(lower) = (15-15)/4 = 0

z(upper) = (19-15)/4= 1

z at 0 = .5

z at 1 = 0.841344746

(look these up in a Z table)

probability "between" = 0.841344746 - .5 = 0.3841344746

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3 years ago

-3a+2b=-3 solve for a

vivado [14]

-3a=-3-2b
a=1+2/3b

Solution
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3 years ago

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Which of the following statements does not describe the structure of an atom? (3 points)

Vikentia [17]

Answer: letter D. Most of the mass of an atom comes from elctron cloud

Step-by-step explanation: your welcome and have a good day

6 0

2 years ago

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A pizza shop sells three sizes of pizza, and they track how often each size gets ordered along with how much they profit from ea

777dan777 [17]

Answer:

The mean and standard deviation of Y is $6.56 and $2.77 respectively.

Step-by-step explanation:

Consider the provided information.

Let Y represent their profit on a randomly selected pizza with this promotion.

The company is going to run a promotion where customers get $2 off any size pizza.

Therefore, $Y=\text{Profit}-\$2$

$Y=X-\$2$

So the mean will be reduced by 2.

$\mu_Y=\mu_X-\$2$

$\mu_Y =\$ 8.56 - \$2$

$\mu_Y =\$6.56$

If we add or subtract any constant number from a given distribution, then the mean is changed by the same number(i.e constant number) but the standard deviation will remain the same.

Therefore $\sigma_Y=\sigma_X=2.77$

Hence, the mean and standard deviation of Y is $6.56 and $2.77 respectively.

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3 years ago

Need help! Not sure what exactly is going on here!

marishachu [46]

Answer:

idk

Step-by-step explanation:

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3 years ago