Two planes leave dallas at the same time. one heads east at a speed of 428 miles per hour. the other plane heads west at a speed of 382 miles per hour. how many hours will it take them to be 2,025 miles apart?

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0