Justify the last two steps of the proof. given: abcd is a rectangle. prove: δabc δcda abdc is a rectangle. abcd is a parallelogram. ab dc and bc da ac ac δabc δcda given definition of a rectangle. opposite sides of a parallelogram are congruent.

Acircular hot tub located near the middle of a rectangular patio has a diameter of 48 inches. the patio measures 11 feet by 6 feet. what is the area of the patio that is not covered by the hot tub?

Sketch one cycle if the cosine function y=2cos2theta

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?