Answer:
B
Step-by-step explanation:
Let lowest integer be n then
4(n + 4) = 3n + 2(n + 2) + 4
4n + 16 = 5n + 8
8 = n
so three integers are 8,10 and 12.
Answer:
6.2 meters
Step-by-step explanation:
Use pythagorean theorem to find b:
b = √(2.8² - 2.7²) = √0.55 = 0.7 (nearest tenth)
Perimeter of triangle = sum of all its sides = 2.8 + 2.7 + 0.7
Perimeter = 6.2 meters
Answer:
she used square unit instead of cubic units
in calculating the volume of the pyramid she didn't multiply by 1/3
she subtracted the pyramid volume instead of adding it
