1. A wave can be approximately modeled by the sine function
y= a sin bx. The height of this wave
from the tragh (bottom) to crest
(top) 18 10 feet and the period of this wave is 4 feet.

What is the value of a and b?

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches

since we know that the two functions are equal, f (x) = g

(x), therefore when we equate the two equations the result should be similar to

3x = x – 4:

a. f(x) = 3x, g(x) = x – 4

equating the two functions:

3x = x – 4             (correct)

so we now got our answer (a)

the formula of a midpoint between a abd b:

29 is x=.7

30 is y=3.375 or 3 and 3/8