Provide an appropriate response.If the expression 729x3 + 8y3 is written in the form a3 + b3, then 
and 
A. a = 9x; b = 2y
B. a = 2x; b = 9y
C. a = 2; b = 9
D. a = 9; b = 2
Answer: A
You might also like to view...
Find the exact value by using a sum or difference identity.sin 255°
A. - 
B. - 
C. 
D. 
Given the graph of a one-to-one function, sketch the graph of its inverse. 
A. 
B. 
C. 
D. 
Provide an appropriate response.Suppose you wish to purchase a factory that will yield an annual return of $12,000 for 12 years, after which the factory will have no value. You want to earn 8.25% annually on your investment and also set up a sinking fund to replace the purchase price. If money is placed in the fund at the end of each year and earns 4.2% compounded annually, how much should you pay for the factory?
Fill in the blank(s) with the appropriate word(s).
Use the discriminant of the equation to determine the number of x-intercepts.f(x) = -x2 - 9x + 5
A. No x-intercepts B. Two x-intercepts C. One x-intercept