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harina [27]
3 years ago
13

Help its my last exam on earth helppp!!!

Mathematics
1 answer:
aivan3 [116]3 years ago
4 0

Answer:

(-0.5,0.5)

Step-by-step explanation:

Not entirely sure, but I'm pretty sure its just where they connect.

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Sue took a test in both biology and math last week. The biology test had a mean of 70 and a standard deviation of 7 whereas the
Anna [14]

Answer:

c. the biology test

Step-by-step explanation:

To answer this problem we need to calculate the z-score of both tests, using the formula:

z = (x - μ) / σ

Where x is Sue's score, μ is the mean, and σ is the standard deviation.

  • For the <u>biology test</u>, the z-score is:

z = (76 - 70) / 7 = 6/7 = 0.857

  • For the <u>math test</u>, the z-score is:

z = (76 - 75) / 10 = 1/10 = 0.100

Because the z-score for the biology test is greater than the z-score for the math test, Sue did better in the biology test, in comparison to the rest of the class.

6 0
3 years ago
:)no characters needed just :)
mojhsa [17]

:)  :)  :)  :)  :)         :)  :)  :)  :)  :)

    :)  :)  :)                :)  :)  :)

         :)                     :)

            :)  :)  :)  :)  :)

5 0
2 years ago
Workers are loading boxes onto a truck. So far, they have loaded 48 boxes onto the truck
Talja [164]

Answer:

1,200 total on truck

Step-by-step explanation:

48=4% loaded on a truck and they have 96% left to load

So set up a proportion and it should look like this

48 over x = 4 over 100

48/x=4/100

Do cross multiplication 100×48= 4,800÷ 4 = 1,200 total on truck

=1,200 total on truck

Hope this helps, have a nice day! :D

5 0
3 years ago
What is (3a - 2b) (3a - 2b)?
zysi [14]

Answer:

9a^2-12ab+4b^2

6 0
3 years ago
Read 2 more answers
What property describes the number sentence 6+0=6
Mila [183]
Its called the zero property of addition
8 0
3 years ago
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