Answer:
summation
Step-by-step explanation:
This symbol is the summation symbol
It means to sum what comes after it
The sum of 2 complementary angles equals 90 degrees.
If angle 1 and 2 are complementary and angle 1 and 3 are also complementary than angle 2 would have to be the same as angle 3.
The answer would be true.
The mean age is 29. Without rounding, it would be 29.4285714286
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Answer:
the answer is j because it's impossible to draw a line through the center of any parallelogram that divides the figure into two equal halves that are mirror images of each other