Solve the system of equations.
2x + 2y + 5z = 7
6x + 8y + 5z = 9
2x + 3y + 5z = 6
a. (x = 2, y = -1,2 - 1)
b. (x = 1, y = 0, z = 2)
c. (x = 3, y = -2, z = 0)
d. (x = 4, y = -3, z = 3)
select the best answer from the choices provided

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

The two box p digram the two box plots show the data of the pitches thrown by two pitchers throughout the season. which statement is correct? check all that apply. pitcher 1 has a symmetric data set. pitcher 1 does not have a symmetric data set. pitcher 2 has a symmetric data set. pitcher 2 does not have a symmetric data set. pitcher 2 has the greater variation.ots represent the total number of touchdowns two quarterbacks threw in 10 seasons of play

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.