Find the product. Assume all variables have non-negative values.(4 + 
)(4 - 
)
A. 21
B. 4 - 2
C. -1
D. 11
Answer: D
Mathematics
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Decide whether or not the given equation is an identity.
= cot ?
A. Yes B. No
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A line has the given slope m and passes through the first point listed in the table. Complete the table so that each point in the table lies on the line.m = - 
A. 
B. 
C. 
D. 
Mathematics
Find the power of i.i-21
A. 1 B. -i C. i D. -1
Mathematics
Identify the place value of the underlined digit.16.438
A. Tenths B. Ten-thousandths C. Ones D. Thousandths
Mathematics