Find the number of positive three-digit integers whose digits are among 9, 8, 7, 5, 3, and 1.

18

216

729

  216

Step-by-step explanation:

Each of the three digit positions can have any of 6 values, so there are ...

  6^3 = 216

possible numbers that can be formed.

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:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21

-7 + ? = 21

-7 + 28 = 21

hope it