Use the inverse trig functions to express the angle in terms of the indicated unknown side. 
Express angle A in terms of c. Use one of the inverse trig functions tan-1, sin-1, or cos-1.
A. A = cos-1 
B. A = sin-1 
C. A = sin-1 
D. A = cos-1 
Answer: C
Mathematics
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Explain the mistake, then simplify correctly.
= 
? 
= 
What will be an ideal response?
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Write in logarithmic form.0.0001 = 10-4
A. log10 (0.0001) = -4 B. log-4 10 = 0.0001 C. log10 (-4) = 0.0001 D. log-4 (0.0001) = 10
Mathematics
Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
+ 
B. 
- 
C. 
- 
D. 
Mathematics
Solve the equation.x - 6.4 = 14.1
A. x = 20.5 B. x = 20 C. x = 7.7 D. x = 7.2
Mathematics