A bricklayer pays $462.75 for fire brick, $136.50 for face brick, $47.90 for cement, and $24.30 for sand. What is the total cost of these materials?
What will be an ideal response?
$671.45
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Answer the following statement(s) true (T) or false (F)
1. The four basic math functions can be used with constant values or values stored in a storage register, holding register, input/output registers, or any other accessible word. 2. The math function cannot be used with timer and/or counter values. 3. When the Compute (CPT) instruction first appears on the screen during programming, the source must be specified first. 4. The only way to learn how to apply the arithmetic functions on a given PLC is to read the manufacturer’s literature and work with that PLC. 5. The only difference between the basic math instructions for the Logix5000 controllers and prior controllers is that the Logix5000 controllers use tag based addressing.
Electrical energy is produced in the battery by the chemical reaction that occurs between two dissimilar plates that are immersed in a(n) ____ solution.
A. pure water B. pure acid C. electrolyte D. alkali
The head and tail commands, allow you to view the first few or last few lines of a file (____ lines by default).
A. five B. ten C. fifteen D. twenty
Deep cycling means __________
A) The battery is fully discharged and then recharged B) Overcharging the battery C) The battery is overfilled with acid(H2SO4) D) Overfilling or underfilling the battery with water