Factor completely.x3 - 512
A. (x - 8)(x2 + 8x + 64)
B. (x - 8)3
C. (x + 8)(x2 - 8x + 64)
D. (x - 8)(x2 - 8x + 64)
Answer: A
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Find the indicated trig function of ?, if ? is an angle in standard position with the terminal side defined by the given point.(21, 28); Find cos ?.
A. 
B. 
C. 
D. 
Write a word name for the given decimal notation.4.00478
A. Four and four hundred seventy-eight thousandths B. Four and four hundred seventy-eight tenths C. Four and four hundred seventy-eight millionths D. Four and four hundred seventy-eight hundred-thousandths
Find the length of the unlabeled side in the figure. Then find the perimeter and area of the figure. 
A. unlabeled side = 10 cm P = 62 cm A = 173 cm2 B. unlabeled side = 10 cm P =76 cm A = 243 cm2 C. unlabeled side = 18 cm P = 62 cm A = 173 cm2 D. unlabeled side = 18 cm P = 69 cm A = 243 cm2
Set up the initial simplex tableau for the following problem. Do not solve.The maximum daily production of an oil refinery is 1400 barrels. The refinery can produce two types of fuel: gasoline and heating oil. The production cost per barrel is $6 for gasoline and $8 for heating oil. The daily production budget is $9600. The profit is $3.50 per barrel on gasoline and $4 per barrel on heating oil. What is the maximum daily profit?
What will be an ideal response?