Strontium-90, a radioactive isotope with applications in medicine, has a half-life of approximately 30 years. A 225-gram sample of strontium-90 will decay to 100 grams after approximately years.

Answer choices:
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291
35
32

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.

Adeposit of 5500 at 6% for 3 years equals