Mathematics geometry question. triangle abc

This will be s - r.

Step-by-step explanation:

Here,

SinB = r

CosB = s

SinB = AC/BC

Also,

CosC = AC/ BC

So, we can say SinB = CosC = r

Again,

CosB = AB/ BC

Also,

SinC = AB/ BC

So,

CosB= SinC = s

So,

SinC - CosC = s - r

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.

the number of the people going.

step-by-step explanation:

the cost to buy one movie ticket is $7. if the total cost for the movie is a function of how many people go, then the input is : the number of the people going.