Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 3 feet long at each end, the center support is 563 feet long, and the supports increase in length by 4 feet with each support (from 3 feet to 563 feet), what is the total length of all the supports?

A. 79,239 feet
B. 79,243 feet
C. 79,247 feet
D. 79,240 feet


Answer: B

Mathematics

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Solve the problem.In order to measure the distance across a pond (from A to B), Raul made some measurements, which are given below the drawing. What is the distance (to the nearest unit)?    

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A. 220 ft
B. 140 ft
C. 127 ft
D. 200 ft

Mathematics

Provide an appropriate response.The random variable X has density function f(x) = Find P(X ? 4). Give answer in terms of e.

What will be an ideal response?

Mathematics

Determine if the series converges or diverges; if the series converges, find its sum.

A. Converges; 5
B. Converges; 
C. Converges; 1
D. Diverges

Mathematics

Write the fraction as a decimal.

A. 0.
B. 0.36
C. 0.3
D. 0.

Mathematics