Use a calculator or computer program to approximate the value of y(t) using euler's method with the given time step on the interval [0, t]. then, using the exact solution given, find the error in the approximation to y(t) (only at the right endpoint of the time interval). round answers to five decimal places, do not use intermediate rounding. y'(t)equalsstartfraction t over y endfraction , y(0)equals4; upper deltatequals0.2, tequals1; y(t)equalsstartroot t squared plus 16 endroot

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.