Answer:
x=-58/15
Step-by-step explanation:
distribute first 10-2.5x+12=21-10x-28
Simplify(add the numbers) 22-2.5x=-7-10x
move the variable to the left side 22-2.5x+10x=-7
move the constant to the right side -2.5x+10x=-7-22
simplify like terms 7.5x=-29
divide by 7.5 x=-58/15
alternate forms are x=-3 13/15 or x=-3.86
u have to use derieved form of formula of sin and cos
(x,y) -> (-x,-y)
the coordinates are switched from the (x,y) you have to (-x,-y)
2,598,960
It is a combination because order doesn't matter. You wouldn't want to call A-K-Q-J-10 of hearts a different combination than 10-J-Q-K-A.
52 C 5 = 2,598,960
4/3
29 child 55 adult
x+y=84
22x+48y=3278
x=29,y=55
hope it will help, if not, sry, u can comment below to ask me!
