Which two angles are congruent?
Angles ABC and JKL
-Angles GHI and ABC
O Angles JKL and DEF
Angles DEF and GHI

angles FED and JKL

Step-by-step explanation:

Angles FED and JKL are both right angles.

The correct answer is C. Angles JKL and DEF

step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option