Find the area of the triangle with a = 12.9, b = 12.4, and c = 17.1. round to the nearest tenth.
question 15 options:
80.1 units2
79.1 units2
79.7 units2
82.7 units2

79.7 units2

Step-by-step explanation:

You can find the area by first finding s, which is a+b+c/ 2. Then to find the area you use

sadsdda

step-by-step explanation:

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b