Distribute and simplify.y5/9(y2/9 - 8y3/9)
A. y10/81 - 8y15/81
B. y5/2 - 8y5/3
C. y7/9 - 8y8/9
D. y3/9 - 8y2/9
Answer: C
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Solve the problem.A 200 gal tank is half full of distilled water. At time = 0, a solution containing 1 lb/gal of concentrate enters the tank at the rate of 4 gal/min, and the well-stirred mixture is withdrawn at the rate of 
When the tank is full, how many pounds of concentrate will it contain?
A. 120 pounds B. 100 pounds C. 200 pounds D. 150 pounds
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 2, cos ? < 0Find sin 
.
A. 
B. 
C. -
D. -
Establish the identity.sin 
= cos x
What will be an ideal response?
Fill in the blank with the appropriate answer.If f(s) = f(s + p) for all s in the domain of f, and if p is positive, then p is called the ___________________ of the function f.
Fill in the blank(s) with the appropriate word(s).