The deepest part of the mariana trench (the deepest trench in the world’s oceans) is at an elevation of -11.033 kilometers. the elevation of the deepest part of the atacama trench is -8.065 kilometers. what is the net change in elevation from the atacama trench to the mariana trench? a. 19.098 kilometers b. 2.968 kilometers c. -2.968 kilometers d. -19.098 kilometers

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

Given: ad¯¯¯¯¯ is an altitude. prove: ab2+ac2=cb2 right triangle a b c with right angle a. point d lies on side b c and segment a d is drawn. angle a d c is a right angle. drag and drop a reason into each box to correctly complete the two-column proof. statement reason ad¯¯¯¯¯ is an altitude, and ∠bac is a right angle. given ∠adb and ∠adc are right angles. definition of altitude ∠bac≅∠bda ? ∠bac≅∠adc ? ∠b≅∠b ? ∠c≅∠c reflexive property of congruence △abc∼△dba ? △abc∼△dac aa similarity postulate abbd=cbab ? ab2=(cb)(bd) cross multiply and simplify. acdc=cbac polygon similarity postulate ac2=(cb)(dc) cross multiply and simplify. ab2+ac2=ab2+(cb)(dc) addition property of equality ab2+ac2=(cb)(bd)+(cb)(dc) substitution property of equality ab2+ac2=(cb)(bd+dc) ? bd+dc=cb segment addition postulate ab2+ac2=cb2 substitution property of equality

Zahra wants the equation below to have an infinite number of solutions when the missing number is placed in the box.