The general symbolic proof below is an illustration of what type of proof? Given: w is true
Prove: w → x is true

Assume that ~x is true. Then, ~x → y, and y → z. Since z → ~w, ~x → ~w must be true by the law of syllogism. Therefore, w → x is true.

A.
proof by contradiction
B.
proof by direct reasoning
C.
proof by law of syllogism
D.
proof by contraposition

Abike shop sells you a bicycle for $63 and a helmet for $21. the total cost is 150% of what the shop spent originally. how much did the shop spend originally? how much profit did the bike shop earn by selling the bicycle and helmet to you ?

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

Jenny earned a 77 on her most recent test jenny score is no less then 5 points greater then 4/5 of terrance’s score if t represents terrance score which inequality represents the situation