Find the polynomial  of degree 3 with integer coefficients, and zeros . ​

In typical U.S. practice, beam depths are rounded to the closest half inch.

(06.07 MC)  A sample of 10 trucks was taken, and the horsepower to weight was recorded. The computer output for regression is below: What is the equation of the regression line? (4 points)

A beam has dimensions of b = 16 in., h = 24 in., and d = 21.5 in. and is reinforced with 2 No. 6 bars. The concrete strength is 7,000 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth of the compressive stress block is a = 0.554622 in. and the strain in the reinforcement is εs = 0.078407, determine the strength φMn for this beam. Assume the transverse reinforcement is not spirals.

A beam has dimensions of b = 16 in., h = 26 in., and d = 23.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 3,400 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the tensile force T in the reinforcement.

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A beam has dimensions of b = 14 in., h = 22 in., and d = 19.5 in. and is reinforced with 5 No. 5 bars. The concrete strength is 4,300 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the depth to the neutral axis, c.

(06.07 MC)  Data collected on the depth of the Mississippi River and the water discharge are given in the table:   Depth Discharge (ft3) 1.59 63 2.90 97 3.10 123 3.31 254 3.31 398 4.27 550 4.55 583 6.67 603 6.79 655 6.82 726 Find r2, and interpret the results. (4 points)

A beam has dimensions of b = 18 in., h = 30 in., and d = 27.5 in. and is reinforced with 2 No. 8 bars. The concrete strength is 5,800 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 1.405644 in., determine the strain in the reinforcement.

A beam has dimensions of b = 18 in., h = 30 in., and d = 27.5 in. and is reinforced with 3 No. 7 bars. The concrete strength is 4,600 psi, and the yield strength of the reinforcement is 60,000 psi. If the depth to the neutral surface is c = 1.871374 in., determine the strain in the reinforcement.