The Gateway Arch in St. Louis designed by Eero Saarinen (1910-1961) follows the equation y = 211.49 – 20.96 cosh(0.03291765x), 2 < 91.2
where x, y are in meters.
A. How tall is the arch?
Height:
meters
B. A rectangular banner 153 meters long is to hang from one side of the arch to the other. What is the
maximum width of the banner? Ignore any sagging.
Round your answer to 2 decimals.
Maximum width:
meters

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.