The strength of concrete depends on the _____
a. percentage of sand in the mix
b. water-cement ratio
c. type of cement used
d. mixing time
b
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Explain computer-based three-dimensional modeling.
What will be an ideal response?
The support of Native Americans was critical to the survival of the Lewis and Clark expedition
Indicate whether the statement is true or false
Match each individual on the left with the correct phrase on the right. ? A. Francis Drake 1. "sea dog" who plundered the treasure ships of the Spanish Main B. Walter Raleigh ? C. Humphrey Gilbert 2. adventurer who tried but failed to establish a colony in Newfoundland ? ? 3. explorer whose voyage in 1498 established England's territorial claims in the New World ? ? 4. courtier whose colony at Roanoke Island was mysteriously abandoned in the 1580s ? ? 5. colonizer who helped establish tobacco as a cash crop in Georgia
A. A-2, B-1, C-3 B. A-1, B-4, C-2 C. A-3, B-2, C-1 D. A-4, B-3, C-2 E. A-5, B-4, C-1
An 84-pin PLCC will have ________ pins per side
A) 84 B) 14 C) 42 D) 21