A driller is digging geothermal wells at the rate of ?ft. per hour and drills for hours.  If the well was already

src="https://sciemce.com/media/3/ppg__cognero__Unit_10_Combined_Operations_with_Common_Fractions__media__d3e71282-36a9-4a9b-b3c6-5f58131730ab.PNG" data-wiris-created="true" />ft. deep when  the driller began, what is the final depth of the well?

Fill in the blank(s) with the appropriate word(s).

---

ft.

Trades & Technology

Technician A says that most fuel injection systems use the PCM to control the pulsing of the fuel injectors. Technician B says that most fuel injection systems use the PCM to control the operation of the fuel pump control module. Which technician is correct?

?Acetone absorbs about ____ times its own weight in acetylene.

A. ?14 B. ?24 C. ?34 D. ?44

Light ____ is the brightness of the light made available to plants

a. intensity c. spectrum b. energy d. reflectivity

Which of the following is NOT a principle of managing bottlenecks?

A) Use alternate routings. B) The rate of material fed to a bottleneck should be controlled. C) Change the schedule. D) Do anything to increase the capacity of a bottleneck. E) A time buffer should be established after each bottleneck.