Answer:
As shown in picture,
EB is perpendicular with AC
DC is perpendicular with AC
=> EB // DC
Applying Thales theorem:
BC/AC = ED/AD
=> AD = ED x AC/BC = 72 x 88/55 = 115.2
=> AE = AD - ED = 115.2 - 72 = 43.2
Hope this helps!
:)
The Very First Triangle is the 30 -60 -90 Degree Triangle
let total earnings = x
and number of hours = y
so x=60+5.25y is the formula
so for 4 hours replace y with 4
x = 60+5.25(4)
x = 81, so for 4 hours she made $81
Use substitution and substitute y into the other equation. One of the equations already gives you y in terms of x, so use that and substitute it into the other equation. y = 3x - 4
Plug into the other equation: -3y = -9x + 12
-3(3x-4) = -9x + 12
-9x + 12 = -9x + 12
This is an identity. So that means that any value of x makes this equation true. So B.
Answer:
(-1, 1)
Step-by-step explanation:
Just look at where the two lines intersect and thats the soloution