?Let x be a random variable that is normally distributed with the given mean  and standard deviation . Find the probability

data-wiris-created="true" /> using a symbolic integration utility. Round your answer to four decimal places.
?

A. ?0.3085
B. ?0.2525
C. ?0.1908
D. ?0.1223
E. ?0.1695

---

Answer: B

Mathematics

Find the equation of the line tangent or normal (as indicated) to the given curve with the given slope.y = (4x - 7)3, normal line with slope - , x > 0

A. 12x - y - 14 = 0 B. x + 12y - 14 = 0 C. x - 12y - 14 = 0 D. 12x + y - 14 = 0

Determine the vertex, focus, and directrix of the parabola and sketch its graph.(y + 4)2 = 12(x - 2)

A. vertex: (-2, 4)  
focus: (1, 4)  
directrix: x = -5

B. vertex: (-4, 2)  
focus: (-1, 2)  
directrix: x = -7

C. vertex: (2, -4)  
focus: (-1, -4)  
directrix: x = 5

D. vertex: (2, -4)  
focus: (5, -4)  
directrix: x = -1

Identify the expression as a monomial, a binomial, a trinomial, or not a polynomial.3k + 8

A. monomial B. trinomial C. not a polynomial D. binomial

Solve the problem.Plot the point  and find other polar coordinates (r, ?) of the point for which:(a) r > 0,  -2? ? ? < 0(b) r < 0,  0 ? ? < 2?(c) r > 0 2? ? ? < 4?  

What will be an ideal response?