Hei has the element shown for his science experiment. How many kilograms of the material does he have? (1,000 grams = 1 kilogram)

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Which expression is equal to (21)(7)(3x) using the associative property? (21 · 7 · 3)x (7)(21)(3x) 32(7 + 3x) (3x)(7)(21)

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.