Express the symbolic statement ~p in words.p: Vitamin C helps the immune system.
A. Vitamin A helps the immune system.
B. Vitamin C may help the immune system.
C. It is true that Vitamin C helps the immune system.
D. Vitamin C does not help the immune system.
Answer: D
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Determine whether the following is always true or not always true. Given reasons for your answers.c(u × v) = cu × cv (any number c)
What will be an ideal response?
Provide an appropriate response.A letter or symbol that represents one or more unknown values is a(n):
A. equation B. known C. constant D. variable
Solve the problem.Two sectors of a textbook economy are (1) communication equipment and (2) components and accessories. In 2005 the input-output table involving these two sectors was as follows.
Determine the production levels necessary in these two sectors to meet a demand for $80,000 of equipment and $90,000 of components. Round to significant digits.
A. Equipment: 90,000 Components: 140,000 B. Equipment: 86,000 Components: 140,000 C. Equipment: 86,000 Components: 90,000 D. Equipment: 24,000 Components: 140,000
Simplify.|-6| - |6|
A. 12 B. 6 C. -12 D. 0