The answer is 40
91+49=140
180-140=40
Answer:
16+5w/4
Step-by-step explanation:
Answer:
after 7 days the temperature would be 35 degrees less than the first day.
therefore, -35 would express the change in temp.
Step-by-step explanation:
Answer:
The graph in the attached figure
Step-by-step explanation:
we have

----> equation A
This is the equation of a vertical parabola open downward
The vertex is the point (0,7)

----> equation B
This is the equation of a circle with center at (0,0) and radius equal to 7 units
The y-intercepts of the circle are the points (0,7) and (0,-7)
therefore
The graph in the attached figure