Which of the following correctly describes a Ferrotherm piston?
A. aluminum trunk
B. forged steel trunk
C. articulating
D. crosshead
Answer: C
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Manuel sold his hogs that average 112 kilograms. How many pounds did the hogs average?
What will be an ideal response?
Which of the following are factors of technology innovation?
A. Feasibility B. Manufacturability C. Performance D. Industry Analysis
The subsequent problems deal with the circuit below where the op amps are LM741's powered by a ±15 V power supply. Assume R1 = R2 = R3 = R4 = R. Assume the op amps are ideal.
If V1 = 1 V, the voltage at the inverting input terminal of op amp 2 is
A. ?15 V B. 2 V C. 15 V D. 0 V E. 1 V
Water scarcity has traditionally been a major concern in the Canary Islands. Water rights are divided into shares, which are privately owned. The article “The Social Construction of Scarcity. The Case of Water in Tenerife (Canary Islands)” discusses the extent to which many of the shares are concentrated among a few owners. The following table presents the number of owners who own various numbers of shares. (There were 15 owners who owned 50 shares or more; these are omitted.) Note that it is possible to own a fractional number of shares; for example, the interval 2–< 3 contains 112 individuals who owned at least 2 but less than 3 shares.
a. Construct a histogram for these data.
b. Approximate the median number of shares owned by finding the point for which the areas on either side are equal.
c. Approximate the first quartile of the number of shares owned by finding the point for which 25% of the area is to the left.
d. Approximate the third quartile of the number of shares owned by finding the point for which 75% of the area is to the left.