Solve the problem.Find parametric equations for the normal line to the surface
at the point 
A.
B.
C.
D.
Answer: A
Mathematics
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Solve the inequality and graph the solution set. -
x < -2
A.
B.
C.
D.
Mathematics
Solve the problem.The annual precipitation for one city is normally distributed with a mean of 267 inches and a standard deviation of 3.4 inches. In what percentage of years is precipitation in the city between 260.2 inches and ?
A. 97.5% B. 95% C. 68% D. 99.8%
Mathematics
Factor.15z2 + 11z - 12
A. (3z + 4)(5z - 3) B. (15z + 1)(z - 12) C. (15z + 4)(z - 3) D. (3z - 4)(5z + 3)
Mathematics
Simplify the expression. Write answer with positive exponents.9-6 ? 99
A. 9-54 B. 813 C. 93 D. 8154
Mathematics