Valerie replaces one car alternator every 1.75 hours. She takes a 1-hour lunch break. Which equation can be used to determine how many alternators she replaces in 8 hours?

Multiple choice question.
cross out

A)
1.75w−1=8
B)
1.75w+1=8
C)
18w−1=8
D)
18w+1=8

many reason,

step-by-step explanation:

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