Consider the normal distribution given below and assume that P is a point of inflection of the curve.
Find the median M of the distribution.
A. 50 m
B. 34 m
C. 81 m
D. 47 m
E. 115 m
Answer: C
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Perform the indicated operations and simplify.
- 
+ 2
A. 
B. 
C. 
D. 
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.x4 - 16
A. prime B. (x2 + 4)(x + 2)(x - 2) C. (x2 + 4)2 D. (x2 - 4)2
Solve the problem.John (whose line of sight is 6 ft above horizontal) is trying to estimate the height of a tall oak tree. He first measures the angle of elevation from where he is standing as 35°. He walks 30 feet closer to the tree and finds that the angle of elevation has increased by 12°. Estimate the height of the tree rounded to the nearest whole number.
A. 67 ft B. 90 ft C. 61 ft D. 86 ft
Find the partial derivative.Let z = g(x,y) = 6x + 3x2y2 - 8y2. Find 
.
A. 6 + 6yx2 B. 6yx - 16y C. 6yx - 6y D. 6yx2 - 16y