Answer:
y = 10
Step-by-step explanation:
40 = 4y
y = 40 : 4
y = 10
The linear speed of the object is the ratio between the measure of the arc it had traveled and the time. For the length of the arc,
2π x (20 m) x (0.2 rad/ 2π rad) = 4 meters
Divide this by the time, 10 s. Thus, the linear speed is equal to 0.4 m/s.
X+6+2x+4+x+3= 180
4x+13=180
4x= 167
x=41.75
Angle ABC= 47.75
Angle CBD= 87.5
Answer: C
Step-by-step explanation:
x = 2
- 6
x + 6 = 2
((x+6)/2 =
)^2
(x+6/2)^2 = y+2
y = (x+6/2)^2 -2
y= 1/4x^2 +3x +7