5) given: cos(1 x) – 1.5x²y – 3 ex2 – 2.5 yz + 98 = 0, determine:
a) the general equation of the plane tangent to it. ans. b) the equation of the plane tangent to it at p. (4,4,0) ans. c) the general parametric equation of the line normal to it ans. d) the parametric equation of the line normal to it at p. (4,4,0 ans.

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone