Consider two different implementations of the same instruction set architecture. the instructions can be divided into four classes according to their cpi (classes a, b, c, and d). p1 with a clock rate of 2.5 ghz and cpis of 1, 2, 3, and 3, and p2 with a clock rate of 3 ghz and cpis of 2, 2, 2, and 2. given a program with a dynamic instruction count of 1.0e6 instructions divided into classes as follows: 10% class a, 20% class b, 50% class c, and 20% class d, which is faster: p1 or p2?

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