Use a product-to-sum identity to rewrite the expression.sin(4t) cos(2t)
A. 0.5(cos(6t) - cos(2t))
B. 0.5(sin(6t) + sin(2t))
C. 0.5(cos(6t) + sin(6t))
D. 0.5(sin(6t) - sin(2t))
Answer: B
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Write a negation of the statement. All squares are parallelograms.
A. All squares are not parallelograms. B. No squares are parallelograms. C. Some squares are not parallelograms. D. Some squares are parallelograms.
Simplify completely.
A. 
B. - 
C. 
D. - 
Find the first year's depreciation using the MACRS method of depreciation and the MACRS depreciation rates table. Round to the nearest dollar.MACRS Depreciation Rates 
Cost: $90,500Period: 20-year
A. $9,050 B. $6,533 C. $3,394 D. $1,645
Before the parachute opens, the velocity v (in meters per second) of a skydiver is given by 
, where t is time in seconds into the jump. After t seconds, a certain falling object has a velocity v given by 
variablename="impvar_41631cc6bbec485098a789628" />. What is the difference in their velocities after 27 seconds? Round to two decimal places. ? A. 9.81 m/sec B. 5.60 m/sec C. 0.17 m/sec D. 9.00 m/sec E. 9.17 m/sec