A rocket's engine ejects fuel at a rate of 40 \text{ kg/s}40 kg/s with an exhaust velocity of 4000 \text{ m/s}.4000 m/s. If the rocket's initial mass is 24000 \text{ kg},24000 kg, what is the approximate change in velocity after 2424 seconds? A. 122.2 m/s B.163.0 m/s C.81.5 m/s D.203.8

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11

the answer should be a

youuu

explanation: