At the beginning of "Becoming Us", Alan Alda shows us the spectacular paintings and carvings in the caves and rock shelters of the Dordogne region of France that date back 30,000 years. Who produced this artwork? Was it produced by the Neandertals that lived in this area 30,000 years ago, or someone else?

The spectacular paintings and carvings in the caves and rock shelters of the Dordogne region of France that date back 30,000 years were not produced by the Neandertals that lived in this area 30,000 years ago. They were made by relative newcomers to the region.

Explanation:

Alan discovers that the Neandertals certainly produced no art, and employed a stone tool technology that changed little over millennia. The people who painted the caves were strikingly different, possessed of what we are calling the Human Spark, capable not only of art but of innovative technology and symbolic communication.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69

answer

the statement that best describes president carter’s attempt to free the hostages in iran is c. all of the attempts failed.

explanation

the operation eagle claw conducted by the united states armed forces was a failed mission which aimed to rescue 52 americans captured as hostages in the american embassy, tehran on 24/4/1980.the mission was authorized by president jimmy carter. the failures included;   obstacles in operation that included operational conditions challenges caused by sandstorms, hydraulic problems of one the helicopters and , mechanical failure of another helicopter that was identified as a cracked rotor blade and the crashing of another helicopter during mission abortion causing death of 8 service persons.