In the sequence below,
what is the 21st term
1, -3, 9, -27, -
des Mixed Problems

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

41/17 as a decimal rounded to the nearest hundredth

In the following diagram it is given that dec, ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2