3 years ago

Convert 77 centimeters into feet. Hint: 1 in = 2.54 cm; 1 ft = 12 in

Mathematics

1 answer:

Over [174]3 years ago

8 0

Answer:

77 centimeters = 2.52625 feet

Step-by-step explanation:

Hope this helps! :3

plz mark as brainliest!

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2 years ago

Standard deviation of 300, 785, 670, 187, 760, 724

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STEP 1

Mean = $\frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571$

STEP 2

Subtract the mean from each data value then square the answer
$300-571=-271$ ⇒ $(-271)^{2} =73441$
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$670-571=99$ ⇒ $(99)^{2}=9801$
$187-571=-384$ ⇒ $(-384)^{2} =147456$
$760-571=189$ ⇒ $189^{2}=35721$
$724-571=153$ ⇒ $153^{2} =23409$

STEP 3

Add the squared answers in STEP 2 then find the mean

$\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3$

STEP 4

Square root the answer in STEP 3
$\sqrt{55937.3} =236.5$

Standard deviation is 236.5

7 0

3 years ago

Convert 77 centimeters into feet. Hint: 1 in = 2.54 cm; 1 ft = 12 in​

Convert 77 centimeters into feet. Hint: 1 in = 2.54 cm; 1 ft = 12 in