PLEASE HURRY. I NEED THIS IS LIKE 20 MINUTES AT THE MOST. I GET AN F IF I DON'T HAVE AN ANSWER. Which expression is equivalent to the expression shown below?

20 + 8y - 9y - 21

Select each correct answer.

2(10 + 4y - 7y - 19)

2(10 + 4y) - 3(3y - 7)

4(5 + 2y - 5y - 17)

4(5 + 2y) - 3(3y + 7)

-(y + 1)

-(1 - y)

y - 1

4(5+2y)=3(3y+7)  and   -(y+1)

Step-by-step explanation:

You combine like terms

20-21 =-1

8y -9y = -1y

so your answer is anything that is the same as -1 - y

2(10+4y-7y-19) =2( -3y-9) = -6y-18    NO

2(10 +4y) - 3(3y-7) =   20 +8y - 9y +21  =    -y +41    NO

4(5+2y-5y-17)= 4(-3y -12) = -12y -48    NO

4(5+2y) - 3(3y+7) = 20 +8y - 9y -21  = -1 = y   YES

-(y+1)= -y-1   YES

-(1-y) = -1+y NO

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

mujhko hui na