Given 7, 9, and 11 as the three sides of a triangle, classify it as one of the
following:
a) acute
b) right
c) obtuse

i believe that the answer is

b. y-1=-2(x-4)

hope this !

6 and 24

step-by-step explanation:

6 x 4 = 24

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²