9 An object is traveling at a steady speed of 9
10
mi/h. How long will it take the object to travel
1
210 mi? First round to the nearest integer to find the estimated answer. Then find the exact
answer.
Estimate the answer
It takes the object about minute(s) to travel 2-
1
mis
10
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The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Use circumcenter theorem to solve for the given values