Find A-1, if it exists.A = 
A. 
B. 
C. 
D. Does not exist
Answer: D
Mathematics
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Establish the identity.cot2x = (csc x - 1)(csc x + 1)
What will be an ideal response?
Mathematics
Convert to scientific notation.160,000
A. 1.6 × 10-4 B. 1.6 × 104 C. 1.6 × 10-5 D. 1.6 × 105
Mathematics
Evaluate the polynomial.4x3 + 5x2 + 43for x = -3
A. -32 B. -20 C. -80 D. -30
Mathematics
Suppose you have 6 miles to travel on a sometimes congested freeway. How long would it take you to travel that distance at the speed of 10 miles per hour?
A) 100 minutes B) 40 minutes C) 36 minutes D) 30 minutes E) 24 minutes
Mathematics