Answer:
$ 1.10
Step-by-step explanation:
p + r = 1.45....p = 1.45 - r
2p + r = 1.80
2(1.45 - r) + r = 1.80
2.90 - 2r + r = 1.80
-2r + r = 1.80 - 2.90
-r = - 1.10
r = 1.10 <=== a ruler costs $ 1.10
p + r = 1.45
p + 1.10 = 1.45
p = 1.45 - 1.10
p = 0.35 .......a pencil will cost $ 0.35
Answer:
51kg
Step-by-step explanation:
GPE=mass×gravitational field strength×height
so...
mass=GPE/gravitational field strength×height
gravition field strength on earth=9.81
650/9.81×1.3=50.968...
<h3>
Answers: m = 0 or m = -9</h3>
Work Shown:
m^2+9m=0
m(m+9)=0
m = 0 or m+9 = 0
m = 0 or m = -9
For more information, check out the topics about factoring and the zero product property.
<span> RdΘ/dt = v </span>
<span>dΘ/dt = (1/3)/20 = 1/60 rad/sec </span>
<span>5(1/60 ) = 5/60 cm/sec = 1/12 cm/sec </span>
<span>Angular Speed = dΘ/dt = 1/60 rad/sec </span>
<span>Linear Speed = RdΘ/dt = 1/12 cm/sec </span>
Answer:
zero im pretty sure
Step-by-step explanation:
