If the line that connects the boat to the parasail is reeled in by 20 meters and the angle of elevation changes to 38° from the boat, how many meters above the lake is the man to the nearest tenth of a meter? a) 67.4 m b) 85.6 m c) 86.3 m d) 177.9 m

Choose the number sentence that shows the identity property of addition. a. 122 = 61 + 61 b. 62 = 1 + 61 c. 61 = 0 + 61

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?