Answer: a) 6, 0, 10 b) yellow/orange line
Step-by-step explanation:
a) Plug the x in the y functions, y = 2x² + x
when x = -2, y = 2(-2)² + (-2) = 8 - 2 = 6
when x = 0, y = 2(0)² + (0) = 0 + 0 = 0
when x = 2, y = 2(2)² + (2) = 8 + 2 = 10
b) By looking the table, the equation has a point (0,0), only blue and yellow/orange line has the passed the point (0,0), so we delete the red line option.
And we choose a point (1,3), then only yellow/orange line has passed the point (1,3). So the yellow/orange line fits the equation.
16=1/4 d+2.5
Where d is diameter of larger gear
16-2.5=1/4d
D=74 cm
Sophia = (6/6 + 5/6) 5 = 9.16666…
9.1666… is equal to 9 laps
Answer:
Sara's number is 27
Step-by-step explanation:
27-19=8
-5*8=-40
