Which of the following is an example of a concatenation error in algebra?
a. Believing that an algebraic equation is an efficient solution strategy for a problem when using arithmetic would actually be more efficient.
b. Believing that a graphical representation of a function is superior to a tabular representation.
c. Believing that the order variables appear in an equation should be the same as the order they appear in a corresponding word problem.
d. Believing that the expression "ab" represents a two-digit number where "a" is in the tens place and "b" is in the ones place.
Ans: d
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Answer the question.What does the digit 4 mean in the number 301,475?
A. 4 thousands B. 4 hundred thousands C. 4 tens D. 4 hundreds
Add or subtract.-50 - 50
A. 0 B. -150 C. -100 D. 100
Simplify by using the associative property of multiplication.4(5t)
A. 
t
B. 9t
C. 20t
D. 
t
The Wronskian of the vector functions 
, 
and 
is
Select the correct answer.
?
A. 
B. 
C. 
D. 
E. 