Aparabola has its vertex at the origin and its focus at (0,5). what function does this graph represent?
1. f(x)= -1/20x^2
2.f(x)= (1/20x)^2
3.f(x)= 20x^2
4.f(x)= 1/20x^2

16

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92

im guessing (23,14). hope this : )

answer: c

step-by-step explanation