The nth term of a sequence is given. Find the first 4 terms.an = 
A. 
, - 
, - 
, - 
B. 
, - 
, 
, - 
C. 
, 
, 
, 
D. - 
, - 
, - 
, - 
Answer: B
Mathematics
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Determine the total turn for the closed curve. Assign a positive measure to counterclockwise turning.
A. 360° B. -360° C. 0° D. -720°
Mathematics
Round to the indicated place.The Great Pyramid of Khufu in Egypt is 137.11 meters tall. Round this measurement to the nearest tenth of a meter.
A. 137 m B. 137.0 m C. 137.1 m D. 137.11 m
Mathematics
Let z vary jointly with x and y. Find the constant of variation k. Then, use 
to find z when x = 5 and y = 7.z = 4 when x = 10 and y = 2
A. k = 80; z = 2800 B. k = 0.2; z = 7 C. k = 40; z = 1400 D. k = 0.4; z = 14
Mathematics
Factor out the greatest common factor.(x - 5)(x + 5) + (x - 5)(x + 7)
A. 2(x - 5)(2x + 12) B. (x - 5)(x + 12) C. (x - 5)(2x + 12) D. 2(x - 5)(x + 6)
Mathematics