Find all real numbers that satisfy the equation.2 cos 3? = 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Determine the number of significant digits in the given approximate number.0.070080
A. 6 B. 5 C. 3 D. 2
Mathematics
Simplify.
÷ 
? (
÷ 9) ÷ (8 - 9)
A. 0 B. 4 C. undefined D. 1
Mathematics
Determine whether the following is a trinomial square.6x2 - 26x - 20
A. No B. Yes
Mathematics
Determine the order of the matrix.[6]
A. 0 × 0 B. 0 C. 1 D. 1 × 1
Mathematics