Multiply.(p + 3q)(p - 3q)
A. p2 + 6pq - 9q2
B. p2 - 6q2
C. p2 - 9q2
D. p2 - 6pq - 9q2
Answer: C
Mathematics
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Using a calculator, solve the following problems. Round your answers to the nearest tenth.A boat leaves the entrance of a harbor and travels 86 miles on a bearing of N 58° E. How many miles north and how many miles east from the harbor has the boat traveled?
A. 72.9 miles north and 45.6 miles east B. 45.6 miles north and 72.9 miles east C. 86 miles north and 86 miles east D. 53.7 miles north and 137.6 miles east
Mathematics
Use a double-angle identity to find the exact value of the expression.
A. 
B. 
C. 
D. 
Mathematics
Graph the linear equation.x = 3
A. 
B. 
C. 
D. 
Mathematics
Use the half-angle formulas to simplify the given expression.
A. 2 sin 14?
B. 2
sin 14?
C. 2
cos 14?
D. 4 sin 14?
Mathematics