Questions

The correct statement among the given options about the process of scientific inquiry is "It is possible to test hypotheses, such as those involving historical events, without conducting experiments."

Although it is not possible to carry out experiments to test hypotheses about evolutionary relationships between living groups or about the timing of the origin of major evolutionary innovations, such hypotheses can be evaluated by making predictions about the expected findings that would result from these hypotheses. Data can then be collected to test whether these predictions are correct.

Main memory works in conjunction with CPU.

The U.S. Army identifies eight core leadership competencies. One of these--leading by example--exemplifies the warrior ethos. The leader is always required to behave in a way that provides those under his or her command with a positive and effective role model.

The warrior ethos is a value that is eschewed by the U.S. Army.

The Army defines it as the adherence to a code that includes always putting the mission first, never accepting defeat, never quitting, and never leaving behind a comrade who has fallen.

The above-given statement is absolutely true. Poorly tuned engines of vehicles will not get good gas mileage.

A poorly running engine may lose power that is needed for normal driving and emergencies, may not start, gets poor fuel economy, pollutes the air, and could stall when you are on the road causing a traffic problem.

Beats means the periodic increase and decrease in loudness heard when two notes of nearly the same frequency are sounded simultaneously.

From the given equation,

88x370/100 + 24x210/100 - 118 = x

=> x = 325.6 + 50.4 - 118

x = 258.