Answer:
C
Step-by-step explanation:
Given
30(
x - 2) + 40(
y - 4)
Multiply each of the terms in the first parenthesis by 30 and multiply each of the terms in the second parenthesis by 40.
= 15x - 60 + 30y - 160
= 15x + 30y - 220 → C
Answer: A
(He has the side lengths in the wrong place in the cosine ratio)
Move the decimal to right 3 times
Is this simultaneous equations?
if yes then the first step is
make one of the unknown as the subject
Answer:
6
Step-by-step explanation: