Use a calculator to find the value of the expression rounded to two decimal places.sin-1 (0.7)
A. 0.78
B. 45.57
C. 0.80
D. 44.43
Answer: A
Mathematics
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Find all real-number square roots of the given number.
A. - 
B. ± 
C. 
D. ± 
Mathematics
Use the cofunction identities to find an angle ? that makes the statement true.sin (3? - 17°) = cos (? + 43°)
A. ? = 10° B. ? = 6° C. ? = 90° D. ? = 16°
Mathematics
Factor out the greatest common factor from the expression.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Factor by grouping.15x2 + 20x + 6x + 8
A. (15x + 2)(x + 4) B. (15x - 2)(x - 4) C. (5x + 2)(3x + 4) D. (5x - 2)(3x - 4)
Mathematics