There are 9 students in Ms. Miller's 2nd grade class. She wants to assign each student a specific place in a single file line to walk to recess. Tell
if this is a permutation or a combination, and then tell how many different ways the students can be arranged.
Combination, 362880
Permutation, 81
Combination, 81
Permutation, 362880

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1

the answer is b.

64

step-by-step explanation:

c=2πr=2·π·8≈64