Each angle interior angle in a rectangle is 90
Answer:
0
Step-by-step explanation:
It zeroes it out because of the negative sign...
(and not enough information was provided to the question)
2u-2u-4uequals 2u-2u+3+u+32
answer: The Earth's place in the galaxy was determined largely by an astronomer named Harlow Shapley. Thanks to the regular periods of these stars and their presence in globular clusters, Shapley was able to map the distances to a number of clusters.
Step-by-step explanation:
