3 years ago

Solve inequality x2 < 64

Mathematics

1 answer:

nadya68 [22]3 years ago

7 0

X^2 < 64 is (-8,8) thats the answer my dude

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The following is the frequency distribution for the speeds in miles per hour (mph) of a sample of 35 automobiles traveling on an

Gnoma [55]

Answer:

The answer is "70.38".

Step-by-step explanation:

Given:

$Speed\ \ (mph) \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ Cumulative \ \ Frequency\\\\50-54\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 2\\\\55-59\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 6\\\\60-64\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 11\\\\65-69\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 21\\\\70-74 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 30\\\\75-79 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 35\\\\$

solution:

$Interval \ \ \ \ \ \ \ X\ \ \ \ \ \ \ F \ \ \ \ \ \ \ fX\\\\$

$50-54 \ \ \ \ \ \ \ 52 \ \ \ \ \ \ \ 2 \ \ \ \ \ \ \ \ \ 104 \\\\55-59 \ \ \ \ \ \ \ 57 \ \ \ \ \ \ \ 6\ \ \ \ \ \ \ \ \ 342 \\\\60-64 \ \ \ \ \ \ \ 62 \ \ \ \ \ \ \ 11 \ \ \ \ \ \ \ \ 682 \\\\65-69\ \ \ \ \ \ \ 67 \ \ \ \ \ \ \ 21\ \ \ \ \ \ \ 1407 \\\\70-74\ \ \ \ \ \ \ 72 \ \ \ \ \ \ \ 30 \ \ \ \ \ \ \ 2160\\\\75-79 \ \ \ \ \ \ \ 77 \ \ \ \ \ \ \ 35\ \ \ \ \ \ \ 2695 \\\\$