Find the reciprocal.
A. 
B. 18
C. 0
D. 1
Answer: B
Mathematics
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Add or subtract measurement numbers, rounding to the correct precision.12 lb + 58.5 lb
A. 70.6 lb B. 70 lb C. 70.4 lb D. 70.5 lb
Mathematics
Solve the equation.-3x + 9 + 5 = -2(x - 3)
A. {8} B. {2} C. {- 17} D. {- 8}
Mathematics
Find the principal unit normal vector N for the curve r(t).r(t) = (1 + t)i + (3 + ln(cos t))k, -?/2 < t < ?/2
A. N(t) = (-cos t)i - (ln(cos t))k B. N(t) = (-sin t)i - (cos t)k C. N(t) = (-cos t)i - (tan t)k D. N(t) = (cos t)i + (sin t)k
Mathematics
Graph the inequality.y ? 3x - 1
A. 
B. 
C. 
D. 
Mathematics