Answer:
What class is this? If I know the class, I will be able to help further.
Step-by-step explanation:
Answer:
perimeter: add p + m + n
area: use (p × m)/2
find missing side: use p^2 + m^2 = n^2
Part a: 21 dollars because you multiply .40 with 5 and get 6. you add the 6 to the 15 and get 21.
part b: 30.21 because you multiply 38 by .25 and get the answer for that and then subtract that number from 38. then you multiply 0.06 by 38 and when u get that number, add that to the discounted price.
Plug in 0
7+(-4(0)^2)
7+(0)^2
7+0=7
-4x+3y=15
3y=15+4x
y=(15+4x)/3= 4/3x +5
slope: 4/3
y-intercept: 5