Answer:
18
Step-by-step explanation:
54/18=3
72/18=4
90/18=5
Answer:$52.00
Step-by-step explanation:
<span>Alternative</span>
4(3*5+7)+3(2*5+5)=
4(22)+3(15)=
(4*22)+(3*15)=
88+45=133
To solve this problem, we must assume that the man
undergoes constant acceleration as he goes down the river (therefore no other forces
must act on him except gravity). Therefore we can use the formula below to
calculate for the duration of his fall:
y = y0 + v0 t + 0.5 a t^2
where y is the distance and y0 = 0 since we set the
reference point at the bridge, v0 is the initial velocity and is also equal to
v0 = 0 since the man started from rest, therefore the equation becomes:
y = 0 + 0 t + 0.5 a t^2
y = 0.5 a t^2
Rewriting in terms of t:
t^2 = 2 y / a
t = sqrt (2y / a)
a is acceleration due to gravity = 9.8 m/s^2
t = sqrt [2 * 23 / 9.8]
t = 2.17 s
Therefore the jump last only about 2.17 seconds.
Answer:
6.28
Step-by-step explanation:
This problem bother on the mensuration of flat shapes, a circle.
Volume v =
Diameter d= 
Radius r = 
Since we are required to solve for the circumference of a circle
The expression for the circumference of a circle is given as
The question insist that we type just a number hence the circumference
of the plug is 6.28
