Determine whether the argument is valid or invalid. You may compare the argument to a common form, if applicable, or use a truth table.r ? p
? p ? r
A. Invalid
B. Valid
Answer: A
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Rita jogs for 8 miles and then walks an additional 11 miles. She jogs at a rate twice her walking rate and she covers the entire distance of 19 miles in 3 hours. Find the rate she jogs and the rate she walks.
A. 10 miles per hour jogging and 5 miles per hour walking B. 6 miles per hour jogging and 3 miles per hour walking C. 6 miles per hour jogging and 7 miles per hour walking D. 20 miles per hour jogging and 10 miles per hour walking E. 14 miles per hour jogging and 7 miles per hour walking
In the given voting system, the weights represent, in order, voters A, B, C, and so on. Determine the Banzhaf power index for each voter.[12 : 1, 3, 5, 7]
A. A has an index of 0. All others have an index of 
.
B. A and B have an index of 
. C and D have an index of 0.
C. A and B have an index of 0. C and D have an index of 
.
D. All have an index of 
.
Provide an appropriate response.Factor by grouping: 4x2 - 9x + 2
A. (4x + 1)(x - 2) B. (4x - 2)(x - 1) C. (4x - 1)(x - 2) D. (2x - 1)(2x - 2)
Evaluate.2x + 5 for x = 4
A. 7 B. 13 C. 16 D. 3