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Anastasy [175]
3 years ago
12

What are the two representations of the conversion factor used to convert between inches and feet? Select all that apply.

Mathematics
1 answer:
ipn [44]3 years ago
6 0
B and C are the same thing and they would be the two representations of the conversion that shows 12 inches is equivalent to 1 foot, so B and C are your answers
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Divide.<br><br> −4 1/3÷−2 3/5<br><br> 123<br><br> 145<br><br> 215<br><br> 235
Over [174]

Answer:

1.66666666667

Step-by-step explanation:

6 0
3 years ago
Samuel bought a jacket for $16 in January. The cost of the jacket increased to $24 in September. What percent of the original pr
garri49 [273]
Write a proportion first, change over original, like this:
 8      x
16   100
(I got 8 because the difference between 24 and 16 is 8 and I got 100 because percents are out of 100.)
Cross multiply 8 by 100 and you get 800.
Divide 800 by 16 and you get 50.
It changed by 50%
6 0
4 years ago
Read 2 more answers
A teacher was interested in knowing the amount of physical activity that his students were engaged in daily. He randomly sampled
klasskru [66]

Answer:

The standard error of the mean is 4.5.

Step-by-step explanation:

As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.

The mean of the sample is:

\bar{x}=\frac{1}n} \sum x_i =\frac{30+40+60+80+20+85}{6}=52.5

The standard deviation of the sample is calculated as:

s=\sqrt{\frac{1}{n-1}\sum (x_i-\bar x)^2} \\\\ s=\sqrt{\frac{1}{5}\cdot ((30-52.5)^2+(40-52.5)^2+(60-52.5)^2+(80-52.5)^2+(20-52.5)^2+(85-52.5)^2}\\\\s=\sqrt{\frac{1}{5} *3587.5}=\sqrt{717.5}=26.8

Then, we can calculate the standard error of the mean as:

\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}=\frac{26.8}{6}= 4.5

6 0
3 years ago
Given that f(x) =<br> X + 3/2<br> a) Find f(2)<br> b) Find f^-1(x)<br> c) Find f^-1(12)
zysi [14]
A) x+3/2
b) x/f
c) 12/f


Mark brainliest please


Hope this helps you
5 0
2 years ago
Which graphs show functions with direct variation? select three options.
Nikolay [14]

Answer:

the daily graphs

Step-by-step explanation:

the news paper

4 0
3 years ago
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