Wo polygons are similar if their corresponding angles are and their corresponding sides are
a. congruent . . congruent
b. congruent . . proportional
c. proportional . . congruent
d. proportional . . proportional

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.

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?