Ris the region below the curve y=x and above the z-axis from x=0 to x=b, where b is a positive constant. s is the region below the curve y=cos(x) and above the x-axis from x=0 to x=b. for what value of b is the area of r equal to the area of s?
i know the answer is 1.404, but i need an explanation as to why. and you.

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.