Limited time, answer in 5 minutes. a cross-country skier skied at a rate of 10.82 miles per hour. in 2.45 hours, the skier covered 2.6509 miles. is this correct? explain why or why not.

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.

Give the functions f(x) = |x + 2| - 3, what is the domain? a,b,c, or d all real numbers x > 2 x < -2 all real numbers and x cannot equal to 2

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?