A new bridge is to be constructed over a big river. The space between the supports must be 1000 feet; the height at the center of the arch needs to be 320 feet. The support could be in the shape of a parabola or a semi-ellipse. An empty tanker needs a 250 foot clearance to pass beneath the bridge. The width of the channel for each of the two plans must be determined to verify that the tanker can pass through the bridge.

Use the above information to answer the following questions:

a. Write the equation of a parabola with these characteristics

b. Write the equation of a semi ellipse with these characteristics

c. How wide is the channel that the tanker can pass through?

Use the above information to answer the following questions:

a. Write the equation of a parabola with these characteristics

b. Write the equation of a semi ellipse with these characteristics

c. How wide is the channel that the tanker can pass through?

### Recently Asked Questions

- Your final project will require you to examine a foreign currency of your choice and provide an analysis of that currency against the US dollar over any recent

- Please refer to the attachment to answer this question. This question was created from Chapter9_problems.

- Oliver takes a random sample of beads and finds that 17 out of the 43 beads sampled are purple. What is the p-value associated with the hypothesis test from