Surface area of sphere = 194<span>πr^2 =19</span><span>πr^2=19/4</span><span>
</span><span>πr^2=4.75</span><span>
</span><span>r^2=4.75/3.14 (where </span><span>π=3.14</span><span>)</span><span>r^2=1.51</span><span>r= </span>√1.51
r=1.22
I don't know about the unit though.
I think it's a rectangle block because the surface is flat on all the sides.
Answer:
4909 m/hr
6000 m/hr
Step-by-step explanation:
Last Year :
Distance = 300 m
Time = 3 2/3 minutes
Speed per hour = distance / time
Time in hour = 11/3 ÷ 60 = 0.0611111 hour
300 / 0.0611111 = 4909.0918 m /hr
= 4909 m/hr
This year :
Distance = 200 m
Time = 3 minutes
Speed per hour = distance / time
Time in hour = 3 ÷ 60 = 0.0333333 hour
200 / 0.0333333 = 6000.0060 m /hr
= 6000 m/hr
I don’t really know but hope u have a good day
Answer:
x=55
Step-by-step explanation:
(2x+6)+(x+9)=3x+15
3x+15=180
3x=165
x=55