Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 16
; 60°
B. 16; 30°
C. 32; 30°
D. 16; 150°
Answer: B
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Choose the most reasonable metric length unit. Choose from km, m, cm, and mm.The length of the nail is 32 
.
A. km B. cm C. mm D. m
Write the numeral as a Roman numeral.842
A. DCCCXLII B. DCCCLXII C. CMMXLII D. CCMXLII
The number of persons aged 18-64 receiving disability benefits through Social Security, the Supplemental Security income, or both, from 1990 through 2000 is approximated by the function 
, where 
is measured in units of a million and t is measured in years, with
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?
Compute 
. Round your answer to five decimal places.
?
A. 
million
million per year
million per year in the second power
?
B.
million
million per year
million per year in the second power
?
C.
million
million per year
million per year in the second power
?
D.
million
million per year
million per year in the second power
?
E.
million
million per year
million per year in the second power
?
The polynomial is given in one of the three forms: standard, root, or factored. Change it to the specified form. f(x) = 7(x + 4)
; write in factored form
A. f(x) = (x + 4)(7x - 8)
B. f(x) = (x + 4)(8x - 7)
C. f(x) = 
(x + 4)(7x - 8)
D. f(x) = 7(x + 4)(7x - 8)