Solve the problem.How many 7-symbol codes can be formed using 3 different symbols? Repeated symbols are allowed.
A. 840
B. 210
C. 2187
D. 35
Answer: C
Mathematics
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Multiply or divide.
÷ 
A. - 
B. 1
C. 
D. - 1
Mathematics
Use a calculator to find the acute angle ? (to the nearest tenth of a degree) that satisfies the equation.tan ? = 0.53383945
A. 208.1° B. 331.9° C. 28.1° D. 61.9°
Mathematics
Solve the system of linear equations.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Use a right triangle to write the expression as an algebraic expression. Assume that x is positive and in the domain of the given inverse trigonometric function.sin(sin-1 
)
A. 
B. x
C. 
D. 
Mathematics