Let p(x) = x^2, q(x) = 2x^3 + 1, and r(x) = 7x^4 - 5x^3 - 6x - 2. Find p(q(x)) + r(x).
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Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d

Which statements are true about additional information for proving that the triangles are congruent check all that apply