What triangles? there isn’t a picture of the triangles shown
Answer:
area of the shaded figure

Answer:
A histogram is used to graphically summarize and display the distribution of a process data set.
Note:
Me and Imanzanaresordonez (Sorry if I got the name wrong) answered at about the same time.
Answer:
Quad II's Symbols are (-, +)
Step-by-step explanation:
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Quad 2 | Quad 1
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Quad 3 | Quad 4
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