What are the solutions to the equation 9x2 = 49, rounded to the nearest tenth?

a.
2.3, –2.3

b.
5.4, –5.4

c.
7, –7

d.
21, –21

Which statement about the relative areas of δabc and δxyz is true? the area of δabc > the area of δxyz the area of δabc < the area of δxyz the area of δabc = the area of δxyz more information is needed to compare.

Two numbers have a sum of -19. one number is x. what expression represents the other number?

What is a correct first step in solving the inequality-4(3-5x)> -6x+9