Find the distance between the planes.


Mathematics

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Solve the problem.An express train and a local train leave a station at the same time (on separate tracks) and head for a town 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.

A. Express: 100 mph; local: 50 mph B. Express: 25 mph; local: 12.5 mph C. Express: 50 mph; local: 25 mph D. Express: 60 mph; local: 30 mph

Mathematics

Find the area.

A. 16 in.2 B. 55 in.2 C. 27.5 in.2 D. 22.5 in.2

Mathematics

Provide an appropriate response.A manufacturing plant claims that only 0.2% of its products are defective. From a sample of 3000 products, it is found that 4 are defective. Using n = 3000 and p = 0.002, approximate P(X = 4) by using the normal approximation.

Fill in the blank(s) with the appropriate word(s).

Mathematics

Translate the phrase into a multiplication problem. Then find the product.Multiply 82 by 8.

A. 756 B. 656 C. 646 D. 650

Mathematics