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Time (sec)
3
4
Сл
6
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8 9
Depth (ft)
the
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5 sec, -8 ft
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ting

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form