Answer:
there are 15 birds all together and 5 black birds on the tree.
Step-by-step explanation:
Answer:
opt 4
Step-by-step explanation:
when x=0, 0+3y= -3, so y=-1 (0,-1) is solution
when x=3 , 21+3y=-3, 3y= -3-21= -24
y= -8 (3,-8) is also solution
Answer:
13.2 or 13 1/5 inches
Step-by-step explanation:
2 1/5 in/day * 6 days = 13.2 or 13 1/5 inches
OR
2 1/5 in
+ 2 1/5 in
+ 2 1/5 in
+ 2 1/5 in
+ 2 1/5 in
+ 2 1/5 in
------------
13 1/5 in
Answer:
9.73 cm to 2 DP
Step-by-step explanation:
Total of the lengths involved = 7*9.4 + 5*10.2
= 116.8 cm
So the mean of the 12 fingers
= 116.8/12
= 9.73 cm to 2 DP.
Answer:
1195.22N.
Step-by-step explanation:
Mass: m =82.6 kg
Velocity: v= 16.4m/sec.
Distance: d = 9.29 metres.
Acceleration = (v²/2d) = (16.4²/18.58) = 14.47m/sec².
Force = (mass x acceleration) = (82.6 x 14.47) = 1195.22N.
