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1.If variable y is defined as: y = a*x*x + b*x+ c If we would like to obtain y in terms of c when a = 3, x = 5, and b= 10 and store it in z What command can be used? Answer z = subs(y,(a x b),{3 5 10}) z = subs(y,{a x b},{3 5 10}) z = subs(y,(a x b),(3 5 10)) z = subs(y,{a x b},(3 5 10))
2.Consider the following two simultaneous equations: x^2 + y^2 = 42x + 3*y + 2*y^2= 6 Which of the following is a possible solution for x and y? Answer x = -6.22 & y = 1.83 x = 6.48 & y = 0.18 x = -5.59 & y -1.38 x = 6.33 & y = -3.27
An automobile that you are looking at purchasing has an advertised fuel mileage of 30 miles per gallon. You rent the car for a week and track your mileage to school and back home and get (miles/gallon)
An aluminum alloy tube with an outside diameter of 2.9 in. and a wall thickness of 0.32 in. is used as a 19-ft-long column. Assume that E = 8300 ksi and that pinned connections are used at each end of the column.
couplings , each with a loss coefficient of k=0.15, are located every 10 m along thehose. the nozzle outlet diamter is d= 25 mm, its minor losscoefficient is k=0.02 based on outlet velocity
A 175 Mi^2 watershed has a 4200 acre reservior within its boundary . The annual watershed runoff to the reservior is 13in. A flow of 120 mgd (368 ac-ft/day) is to be drafted from the reservior. The annual rainfall is 38in.
The solid compound shaft, made of three di¤erent materials, carries the two torques shown. (a) Calculate the maximum shear stress in each material. (b) Find the angle of rotation of the free end of the shaft.
a simple random sample of 20 items from a normal population resulted in a sample mean of 17.25 and a sample standard devation of 3.3 a. develop a 90% confidence interval for the population mean. b. develop a 95% confidence interval for the populatio..
Calculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km.
a ball is thrown with a valocity of 30 m/s at an angle of 40 degrees above the horizontal from the top of a 100m tall building. what is balls velocity when it lands. (neglect air resistance in both cases) DO NOT USE 2D projectile motions, only work ..
The elevation of the lowest bottom of the structure is at 1470 feet. Calculate the maximum length (feet) of the parabolic curve required to meet the given conditions.
what does the free body analysis look like and how to calculate the loads into the horizontal and vertical members of a free standing jib hoist with a 15' boom and 5000 pound capacity
If a sample of wood measuring 1.45" x 3.45" x 6" long has a green weight of 8.55 lb. Determine the specific gravity of this wood.
two cars, connected by a cable, are winched up an incline using a second cable. the incline makes an angle of 25 degrees with the horizontal, and the winch rises another 30 degrees above the incline.
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