Answer:
7.8
Step-by-step explanation:
60 × 13%
= 60 × 0.13
= 7.8
Answer:
1.0.024 hp
Step-by-step explanation:
We are given that
Constant force=F=112 N
Speed of lawn mower,v=20 cm/s=
1 m=100 cm
1 hp=746 watt
We have to find the power output
Force applied by women on lawn mower=
Force applied by women on lawn mower=N
Power output,P=
Using the formula
Power output=
Power output,P=hp
Hence, option 1 is true
Answer:
Check my explanation
Step-by-step explanation:
1. x=-7y
2(-7y)-8y=22
-14y-8y=22
-22y=22
y=-1;x=7, I used subtitution because that process was easier.
2. x=3+y
7(3+y)-y=-3
21+7y-y=-3
21+6y=-3
6y=-24
y=-4; x=-1, I used subtitution because that process was easier.
3. x=1 and y=1, I used elimination because that process was easier.
4. x-3=4x-9
-3x=-6
x=3; y=0, I used subsitution because that process was easier.
-3^2 -3(2)^3+-3^2+2(2)^3--3^2 = -17