Factor the sum or difference of two cubes.189x3 - 448x6
A. 7(3x -4x2)(9x2 + 12x3 + 16x4)
B. 7x3(3 - 4x)(9 + 16x2)
C. 7x3(3 - 4x)(9 + 12x + 16x2)
D. 7(3x + 4x2)(9x2 - 12x3 + 16x4)
Answer: C
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Solve.The following table shows per capita health care expenditures (in dollars) from 2003 to 2008. 
The logarithmic model that fits this data is E = f(x) = 3130 + 720 ln x, where E represents the per capita health care expenditures and x is the number of years since 2002. Use this model to predict in what year health care expenditures will reach $5,400.
A. 2,026 B. 2,028 C. 2,027 D. 2,025
Write a matrix to display the information.A bakery sells three types of cakes. Cake I requires 2 cups of flour, 2 cups of sugar, and 2 eggs. Cake II requires 4 cups of flour, 1 cup of sugar, and 1 egg. Cake III requires 2 cups of flour, 2 cups of sugar, and 3 eggs. Make a 
matrix showing the required ingredients for each cake. Assign the cakes to the rows and the ingredients to the columns.
A. 
B. 
C. 
D. 
Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $650 Amount of tax: $39.00
A. 0.6%, $689.00 B. 6%, $689.00 C. 8%, $689.00 D. 7%, $689.00
Use the Half-angle Formulas to find the exact value of the trigonometric function. cos 22.5°
A. 
B. - 
C. - 
D. 
