Answer:
C = 25 + 50h
Step-by-step explanation:
cost for zero hours is $25, so that is the y-intercept of the graph.
each hours adds a cost of $50, so that is the gradient of the graph. These two values give us our equation in slope-intercept form.
Use Heron's formula; see below.
Use Heron's formula.
Let the sides of the triangle have lengths a, b, and c.
Example:
A triangle has side lengths 3, 4, and 5 units.
Find the area of the triangle.
it is 7