In how many ways can a group of 4 people be selected for a party planning committee from a class of 25?

12650

Step-by-step explanation:

We know that the number of combination of r objects choosing from n objects is given by :-

Given: The total number of persons in theclass = 25

The number of people in a group = 4

Then , the number of ways can a group of 4 people be selected for a party planning committee from a class of 25 is given by :-

Therefore, the  number of ways can a group of 4 people be selected for a party planning committee from a class of 25 is 12650.

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: