The determination of whether a reinforced concrete floor system is classified as a one-way or two-way system is based on the ratio of the span lengths for the floor slab in the two principal vertical directions.

Determine As,min for the following beam given that f’c = 4,000 psi and fy = 60,000 psi.

Use the given graph to determine the limit, if it exists.   Find and . (5 points)

A beam is singly reinforced with the reinforcement in two rows. The bottom row contains 6 No. 6 bars at a depth of 20 in. The top row contains 4 No. 8 bars at a depth of 14 in. Determine the effective (centroidal) depth, d, of the steel.

(05.01 LC)  Samuel, a quality assurance inspector at a donut factory, checks for product quality using a random sample of 7 donuts from a batch of 38, with 14 cake donuts and 24 glazed donuts. Let p̂ be the proportion of cake donuts in the sample. Part A: Is the 10% condition met in this case? Justify your answer. (5 points) Part B: Is the Normal condition met in this case? Justify your answer. (5 points) (10 points)

Find an equation for the nth term of the arithmetic sequence. a16 = 21, a17 = -1 (7 points)

Find the first six terms of the sequence. a1 = -7, an = 2 • an-1 (5 points)

Please select ALL the following that are true about fats as they pertain to our diet/eating: 

Find a • b. a = 4i + 3j, b = -4i + 4j (5 points)  

(05.05 MC)  An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of mercury are classified when they reach beyond 6.5 parts per million. A random sample of 25 lobsters in the region were tested and the data is shown in the stemplot. Key: 2|2 = 2.2 parts per million Part A: What proportion of the lobsters in the sample have dangerous levels of mercury in their systems? (4 points)Part B: Construct and interpret a 95% confidence interval for the mean mercury levels of the lobsters if the sample of 25 lobsters has a mean mercury level of 5.05 parts per million and standard deviation of 1.45 parts per million. (6 points)(10 points)