The area of a triangle is 6. Two of the side lengths are 7 and 3.8 and the included angle is acute. Find the measure of the included angle, to the nearest tenth of a
degree.

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum