An auditorium has 15 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium? (7 points)

A beam has dimensions of b = 14 in., h = 26 in., d’ = 2.5 in., and d = 23.5 in. It is reinforced with 2 No. 5 bars on the compression side and 5 No. 8 bars on the tension side. The concrete strength is 3,700 psi, and the yield strength of the reinforcement is 60,000 psi. For the results given below, determine the strength Mn for this beam.a = 4.75 in. (depth of concrete stress block)Cc = 207.2 kips (compressive force in concrete)Cs = 29.8 kips (compressive force in steel)T = 237.0 kips (tensile force in steel)

In a one-way slab, the slab strips used for analysis span the long direction of the panel.

Explain how nature of reactants affects the rate of reaction.                       

Find an equation for the nth term of the arithmetic sequence. -17, -13, -9, -5, … (7 points)

Determine As,min for the following beam given that f’c = 7,250 psi and fy = 60,000 psi.

In a one-way slab, the slab strips used for analysis span the long direction of the panel.

In design, the objective is to select a suitable cross section, dimensions, concrete strength, etc. given a specific factored design moment. There is one unique answer.

Find the first six terms of the sequence. a1 = -9, an = 4 • an-1 (5 points)

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