40÷12.0 and 32÷8.75. I need to show my work to.

Mathematics

1 answer:

devlian [24]2 years ago

3 0

Answer:

40÷12.0=3.333333333

32÷8.75=3.657142857

Step-by-step explanation:

you have to carry and keep adding the extras till you get rid of all of your numbers and this is what you'll get :)

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Step-by-step explanation:

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The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$