3 years ago

Please help ill give brainliest and 20 points (when I can) 2) The ratio 35 : 84 in simplest form is: *

Mathematics

1 answer:

Ray Of Light [21]3 years ago

8 0

Answer:

None Of The Above

Step-by-step explanation:

Its 7/17

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The researcher has limited resources. He sends 9 emails from a Latino name, and 14 emails from a non-Latino name. For the Latino

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Answer: 38.41 minutes

Step-by-step explanation:

The standard error for the difference in means is given by :-

$SE.=\sqrt{\dfrac{\sigma_1^2}{n_1}+\dfrac{\sigma^2_2}{n_2}}$

where , $\sigma_1$ = Standard deviation for sample 1.

$n_1$ = Size of sample 1.

$\sigma_2$ = Standard deviation for sample 2.

$n_2$ = Size of sample 2.

Let the sample of Latino name is first and non -Latino is second.

As per given , we have

$\sigma_1=82$

$n_1=9$

$\sigma_2=101$

$n_2=14$

The standard error for the difference in means will be :

$SE.=\sqrt{\dfrac{(82)^2}{9}+\dfrac{(101)^2}{14}}$

$SE.=\sqrt{\dfrac{6724}{9}+\dfrac{10201}{14}}$

$SE.=\sqrt{747.111111111+728.642857143}$

$SE.=\sqrt{1475.75396825}=38.4155433158\approx38.41$

Hence, the standard error for the difference in means =38.41 minutes

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3 years ago

Round each decimal to the nearest whole number 30.92

Serhud [2]

It would be 31. 31 is a whole number. since 0.91 is close to 1. We would round it to 31 because of that.

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3 years ago

5 over 2 × z - 8 =-3

Olenka [21]

Answer:

Step-by-step explanation:

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3 years ago

Last Tuesday, a parking lot had 80 cars. Of those 80 cars, 40% were tan, 20 were silver, and the rest were black. What perc

stepladder [879]

Answer:

Step-by-step explanation:

35%+28%=63%

37% of the cars were tan

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What can be used to show the difference in variation for two populations that have equivalent measures of center?.

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There’s no answer for that it just depends

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