Answer:
the answer is A i just did the test.
Step-by-step explanation:
Draw a graph with those points. then draw a vertical line through the graph. if the line passes through twice then it’s not a function if it only passes through once it’s a function.
23
Step-by-step explanation:
angle DEF = 74 degrees.
well I would use sins but it's quite simple
Length of DE is 23, just like AB
3.9 x 10 ^-5 is the answer. 0.000039 in scientific notation is 3.9 x 10^-5