Agolf ball, thrown upwards, rises at a speed of v metres per second.
the ball reaches a maximum height of h metres.
h is proportional to the square of v.
when v = 20, h = 8
work out the maximum height reached by the golf ball when v = 35

24.5

Step-by-step explanation:

Formula:

H=KV²

8=K×20²(400)

=8/400

=0.02

H=0.02×35²

=24.5

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

given : the shape of his satellite can be modeled by   where x and y are modeled in inches.

now,the given equation   is a equation of parabola.

here, coefficient of x is positive, hence the parabola opens rightwards.

on comparing this equation with standard equation , we get

in standard equation, coordinates of focus=(0,m)

thus for given equation coordinates of focus=(0,1.5)

step-by-step explanation: