Shane is replacing the glass in his front door. His door has two rectangular panes of glass, each with a height of 1.25 feet and a length of 2 feet. The glass Shane wants to buy costs $12.95 per square foot. Approximately how much will he spend on the doors? A $84 B. $65 C. $42 D. $32​

Explanation is in the file

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a

step-by-step explanation:

strong negative correlation

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