In a bag, there are red and green marbles in the ratio of 3 : 9. If there are 36 marbles in the bag, how many of them are green?

12

Step-by-step explanation:

We know that 3/9 can be simplified down to 1/3. So now we have to basically find the amount 1/3 takes up in the number 36.

1/3 of the number 36 can be determined if we divide 36 by the denominator of 1/3. 36 divided by 3 is equal to 12. Our answer is 12.

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: