Find the expression.u = 4i + j, v = i - 9j
Find 7u - 2v.
A. 26i + 25j
B. 26i - 11j
C. 14i + 25j
D. 26i + 9j
Answer: A
Mathematics
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The graph of a linear function is a straight line.
Answer the following statement true (T) or false (F)
Mathematics
Simplify the expression. Use positive exponents. Assume variables represent nonnegative numbers.
2
A. 
B. 
C. 
D. 
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. 
B. -4
C. 2
D. - 
Mathematics
Provide an appropriate response.
Find and explain any mistake in the following problem. What percent of 40 is 120? 
= 
120 × R = 100 × 40
120R = 4,000
R = 4,000 ÷ 120
R = 
What will be an ideal response?
Mathematics