Which statement best describes how to determine whether f(x) = x4 – x3 is an even function?

a: determine whether (–x)4 – (–x)3 is equivalent to x4 – x3.

b: determine whether (–x4) – (–x3) is equivalent to x4 + x3.

c: determine whether (–x)4 – (–x)3 is equivalent to –(x4 – x3).

d: determine whether (–x4) – (–x3) is equivalent to –(x4 + x3).

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Apolygon is shown on the graph: a polygon is shown on the coordinate plane. vertices are located at 3 comma 5, 1 comma 3, 1 comma 1, 2 comma 0, 4 comma 0, 5 comma 1, and 5 comma 3. what effect will a translation 3 units down and 2 units left have on the polygon? be sure to address how it could impact the angles, side lengths, and congruency between the original pre-image and the image. xd i need