Use a reference angle to find the exact value of the expression.sin 780°
A. 
B. 
C. 
D. 
Answer: B
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Set up a definite integral that gives the arc length of the given curve.x = 4t, y = t3, 0 ? t ? 1
A. 
B. 
C. 
D. 
Solve.The supply function for a product is given by p = q2 + 3q + 125 and the demand is given by 
where p is the price in dollars and q is the number of hundreds of units. Find the price that gives market equilibrium and the equilibrium quantity.
A. $10; 255 units B. $255; 1000 units C. $100; 555 units D. $305; 1200 units
Find the midpoint of the line segment joining the points P1 and P2.P1 = (4a, 1); P2 = (5a, 2)
A. 
B. 
C. 
D. 
Solve the problem.Jarod is having a problem with rabbits getting into his vegetable garden, so he decides to fence it in. The length of the garden is 9 feet more than 2 times the width. He needs 42 feet of fencing to do the job. Find the length and width of the garden.
A. length: 19 feet; width: 5 feet B. length: 31 feet; width: 11 feet C. length: 17 feet; width: 4 feet D. length: 15 feet; width: 3 feet