Select the following statements that are true for the properties of orientation and congruence for reflections? (Select ALL that are true) *
A)Congruence is always maintained when reflecting a Pre-Image
B)Congruence is never maintained when reflecting a Pre-Image
C)Orientation is always maintained when reflecting a Pre-Image
D)Orientation is never maintained when reflecting a Pre-Image

What's the difference between: x≥0 and nonnegative integer. ?

Find the arc length parameter along the given curve from the point where tequals=0 by evaluating the integral s(t)equals=integral from 0 to t startabsolutevalue bold v left parenthesis tau right parenthesis endabsolutevalue d tau∫0tv(τ) dτ. then find the length of the indicated portion of the curve r(t)equals=1010cosine tcost iplus+1010sine tsint jplus+88t k, where 0less than or equals≤tless than or equals≤startfraction pi over 3 endfraction π 3.

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how