Solve.If 2 ft 2 in. of material is used to manufacture one scarf, how much material is needed for 9 scarves?
A. 23 ft 4 in.
B. 16 ft 10 in.
C. 18 ft 2 in.
D. 19 ft 6 in.
Answer: D
Mathematics
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Using Green's Theorem, compute the counterclockwise circulation of F around the closed curve C.F = (x - y)i + (x + y)j; C is the triangle with vertices at (0, 0), (5, 0), and (0, 10)
A. 0 B. 50 C. 100 D. 500
Mathematics
Rationalize the denominator and simplify. 
A. 
B. 
C. 13
D. 
Mathematics
Give three kinds of notation for the percent.90%
A. 
; 9 × 
; 9 × 0.01
B. 
; 90 × 
; 90 × 0.1
C. 
; 90 × 
; 90 × 0.001
D. 
; 90 × 
; 90 × 0.01
Mathematics
Collect like terms and then arrange in descending order.4x4 + 3x6 - 7x + 9x6 + 2x - 8x4
A. 3x11 B. 12x6 - 4x4 - 5x C. 5x6 + 13x4 - 15x D. 12x - 4x6 - 5x4
Mathematics