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irina1246 [14]
3 years ago
10

the temperature dropped 25. Then the temperature went up 17. Let t represent the beginning temperature. Write an expression to s

how the ending temperature.
Mathematics
2 answers:
eimsori [14]3 years ago
7 0
The equation is (t-25)+17

seropon [69]3 years ago
5 0
I don't understand what the question is asking for
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"A state legislator wishes to survey residents of her district to see what proportion of the registered voters are aware of her
aliya0001 [1]

Answer:

The correct answer to the following question will be "384".

Step-by-step explanation:

We are having,

P(-0.05

On solving, we get

⇒  P(\frac{-0.05}{\sqrt{\frac{pq}{n}}}

⇒  \frac{0.05}{\sqrt{\frac{p(1-p)}{n}}} =1.96

On applying cross-multiplication, we get

⇒  0.05^2=1.96^2\times \frac{P(1-p)}{n}

⇒  0.05^2n=1.96^2-1.96^2p^2

⇒  1.96^2p^2-1.96^2p+0.05^2n=0...(equation 1)

When "p" seems to be the population proportion, (equation 1) approach, which is special

∴ b^2-4ac=0

On putting the values in the above expression, we get

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⇒  1.98^2-4\times 0.05^2n=0

⇒  n=\frac{1.96^2}{4\times 0.05^2}

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7 0
3 years ago
Ian factored 12x3y3 – 24x2y3 into 6xy(2x2y2 – 4xy2).
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