The expression below shows a number in
expanded form. what is the standard form of
the number? (lesson 3.2)
2 x 10+ 3 *10 +9 * 100 + 7 x 1,000

a 2,397
b 20.397
c 2.397
d 2.0397

what is the following answer?

Airline passengers arrive randomly and independently at the passenger-screening facility at a major international airport. the mean arrival rate is 10 passengers per minutes. compute the following probabilities. p(x = 4) p(x > 11)

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241