Which of the following choices is the explicit formula for the following geometric sequence?

-0.1, 0.02, -0.004, 0.0008, -0.00016

a. an = 0.1(0.2)n
b. an = 0.1(-0.2)n-1
c. an = -0.1(-0.2)n-1
d. an = 0.2(-0.2)n-1
e. an = -0.1(0.2)n-1

When can u say there is no solution for a system of linear inequalities? explain your answer and show with a system and graph

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Is appreciated! graph the functions and approximate an x-value in which the exponential function surpasses the polynomial function. f(x) = 4^xg(x) = 4x^2options: x = -1x = 0x = 1x = 2