Sally solves for t using comparative relational thinking. Select thestatement that accurately describes solving for t using comparative relational thinking.
12 + 58 = 60 + t.
A. Since 60 is 2 more than 58 then, t will be 2 more than 12.
B. Since 58 is 2 less than 60 then, t will be 2 less than 12.
C. Since 56 is 2 less than 58 then, t will be 2 less than 12.
D. Since 58 is 2 less than 60 then, t will be 2 more than 12.

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

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

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .