Provide an appropriate response.Determine the measure of the acute angle ? for which cos ? = 
.
A. 30° 
B. 45° 
C. 90° 
D. 60° 
Answer: A
Mathematics
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Factor completely.9x2 - 3xt - 2t2
A. (9x + t)(x - 2t) B. (3x + t)(3x - 2t) C. Prime D. (3x - t)(3x + 2t)
Mathematics
Graph the function.y = 
cos 
x
A. 
B. 
C. 
D. 
Mathematics
Graph the expression on each side of the equals symbol to determine whether the equation might be an identity.(csc ? + cot ?)(1 - cos ?) = sin ?
A. Not an Identity B. Identity
Mathematics
Write the whole number in standard form.40,000 + 200
A. 40,200 B. 40,020 C. 4200 D. 20,400
Mathematics