Answer:
Q1: 42
Q8: 10
Step-by-step explanation:
PEMDAS
AC = 3x - 1
AB = 4 x + 8
LINE: A—C—B
4x + 8 is the equation for the whole line, including BC. So you would just have to subtract 3x - 1, the equation for AC, from the equation for AB to find the equation for BC: 4x + 8
-3x - 1
So BC would equal x + 9, since the negative turns the “- 1” into a positive one.
Answer:
5+5+9+9 = 28 cm
Step-by-step explanation:
to determine perimeter add the length of each side (2 sides = 5cm and two sides = 9cm.)
Answer:
B. 5438
Step-by-step explanation:
[(78-65)×626]-2700=5438
Answer:
Yes it is because it's terminating.
Step-by-step explanation: