What is 55/100 in simplest form

Mathematics

1 answer:

Rasek [7]3 years ago

7 0

If you divide both numbers by 5 then you will get 11/20

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How do I simplify the expression 7^0+7^2 over (7^3)^2

AlekseyPX

$\frac{7^0+7^2}{(7^3)^2}=\frac{1+49}{7^6} = \frac{50}{117649}$

Ok done. Thank to me :>

7 0

3 years ago

In a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted o

Maksim231197 [3]

Answer:

324

Step-by-step explanation:

given that in a poll, 74% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicted of murder?"

i.e. Sample proportion $p=0.74\\q =1-p =0.26\\$

Margin of error = 4% = 0.04

Confidence level =90%

Z critical value for 90% = 1.645

Margin of error = 1.645 * std error

Hence std error = $\frac{0.04}{1.645} \\=0.0243$

Std error is also equal to

$\sqrt{\frac{pq}{n} } =\sqrt{\frac{0.74(0.26)}{n} } =0.0243\\\sqrt{n} =18..05\\n = 325.83~324$

Sample size should be 324.

The formula is sample size = (Z critical value)^2 (pq)/(Margin of error )^2

3 0

4 years ago

Against the wind a commercial airline in South America flew 504 miles in 3.5 hours. With a tailwind the return trip took 3 hours

Sonbull [250]

Recall your d = rt, distance = rate * time

so, notice, it went 504 against the wind, and the return trip, well, unless the road elongated or shrunk somewheres, the return trip is also 504 miles.

now, if say the plane has a still air speed of "p", and the wind has a speed of "w", when it was going against the wind, it wasn't really going "p" fast, it was going "p - w" fast, because the wind was subtracting speed from it.

now, when it was going with the wind, it wasn't going "p" fast either, it was going faster, at "p + w" fast, because the wind was adding to it. thus

$\bf \begin{array}{lccclll}
&\stackrel{miles}{distance}&\stackrel{mph}{rate}&\stackrel{hours}{time}\\
&------&------&------\\
\textit{against the wind}&504&p-w&3.5\\
\textit{with the wind}&504&p+w&3
\end{array}
\\\\\\
\begin{cases}
504=3.5(p-w)\implies \frac{504}{3.5}=p-w\\
\qquad 144=p-w\implies \boxed{w}=p-144\\\\
504=3(p+w)\\
----------\\
\frac{504}{3}=p+w\implies 168=p+w\\
\qquad 168=p+\boxed{p-144}
\end{cases}
\\\\\\
168=2p-144\implies \cfrac{168+144}{2}=p\implies 156=p$

5 0

4 years ago

PLEASE HELP ME WITH THIS

Elis [28]

Answer:

y=14

Step-by-step explanation:

42-28=14

7 0

3 years ago

Read 2 more answers

Find -3/5(-1/1/3) show your work