memester74
27.09.2019 •
Mathematics
Janie uses a reflecting tool to reflect point b onto point a. which of the following statements are true/false about the line of reflection?
reflection line is perpendicular to ab. (t/f)
reflection line does not bisect ab. (t/f)
reflection line passes through the midpoint of ba. (t/f)
reflection line forms two equal angles with segment ab. (t/f)
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Ответ:
Ответ:
hey!
steps to solve:
12 + [2 - (4 · a²)] ÷ 7 + b
~substitute
= 2 + [2 - (4 · 5²)] ÷ 7 + 1
~solve what's in parenthesis
= 12 + [2 - (100)] ÷ 7 + 1
~solve what's in brackets
= 12 + [(-98)] ÷ 7 + 1
~divide
= 12 + -14 + 1
~add
= -2 + 1
~add
= -1
answer:
put a put at -1 on the number line!
hope this ! good luck!