Q1) Amanda's container
Amanda's container: 13.5 x 10 x 10 = 1350
Mary's container: 20 x 8 x 8 = 1280
1350 > 1280 so answer is Amanda
Q2) 70 cm^3
1350 - 1280 = 70
You should not be needing help for these questions because all you need to know how to do is multiplication and subtraction. Please try the questions yourself next time because practice is important for doing your exams fast enough (-_-")
Answer: -1
Step-by-step explanation:
Answer: 47.5 cm^2
Step-by-step explanation:
Tony's mistake is that he added the area of the rectangle and triangle. Instead you should subtract the area of the triangle from the rectangle.
1. The area of the rectangle is 5*11 = 55 cm^2
2. The area of the nonshaded triangle is 5*3*(1/2) = 7.5 cm^2
3. The area of the shaded region is the area of the rectangle minus the area of the triangle. This equals 55 - 7.5 cm^2 = 47.5 cm^2
Answer:
a = -4
b = 5
c = -2
(That's the 3rd line you posted)
Step-by-step explanation: