Give the numerical coefficient and the degree of the term.-10z2
A. Coefficient: 10; degree: 2
B. Coefficient: 1; degree: 10
C. Coefficient: 2; degree: 10
D. Coefficient: -10; degree: 2
Answer: D
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Solve the problem.A land developer wants to develop 8 acres of land. Each lot in the development is to be 
of an acre. How many lots will the land developer have in the 8 acres?
A. 
lot
B. 1
lots
C. 2
lot(s)
D. 28 lots
Find the curvature of the curve r(t).r(t) = (3 + ln(sec t))i + (9 + t)k, -?/2 < t < ?/2
A. ? = 1 - cos t B. ? = cos t C. ? = sin t D. ? = -cos t
Find the length of the parametric curve defined over the given interval.x = t + 
, y = 
ln(t8) ; 1 ? t ? 6
A. 16
B. 
C. 
D. 
Find the standard deviation for the given data. Round your answer to one more decimal place than the original data.19, 16, 12, 13, 18, 16, 18, 7, 11
A. 3.7 B. 1.8 C. 4.2 D. 4.0