Determine the order of the matrix.
A. 4
B. 2 × 2
C. 2
D. 1
Answer: B
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Solve.A ladder that is 13 feet long is 5 feet from the base of a wall. How far up the wall does the ladder reach?
A. 144 ft
B. 12 ft
C. 2
ft
D. 
ft
Simplify using properties of exponents.(81x10y4)1/2
A. 
x5y2
B. 6561x20y4
C. 9x5y2
D. 81x5y2
Determine the equation of the line described. Put answer in the slope-intercept form, if possible.Through (4, -1), perpendicular to -2x + 3y = -11
A. y = - 
x
B. y = 
x - 5
C. y = - 
x + 5
D. y = - 
x + 10
Decide whether the argument is valid or invalid, and give the form (of valid or invalid argument) that applies.If the bough breaks, then the cradle will fall.
The cradle will fall.
A. Invalid; fallacy of the inverse B. Invalid; fallacy of the converse C. Valid; modus ponens D. Valid; reasoning by transitivity