In each row, select whether the expressions are equivalent or not equivalent. a. 3x−2x+0.5x
is equivalent or not equivalent to
1.5x.

b. 3(x+4)−2(x+4)
is equivalent or not equivalent to
x+3.

c. 6(x+4)−2(x+5)
is equivalent or not equivalent to
2(2x+7).

d. 3(x+4)−2(x+4)+0.5(x+4)
is equivalent or not equivalent to
1.5.
ANSWER FAST!

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

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event

2y+y=5

add 2y and y