Answer:
Step-by-step explanation:
a+2a+a+10=180
4a=180-10
4a=170
a=42.4°
2a=42.5*2=85°
a+10=42.5+10=52.5°
Answer:
a²(b² - 2b) = a²b² - 2a²b
- a²(b² - 2b) is odd but -2a²b is the even number
=> a²b² must be the odd (because an odd number minus an even number equals an odd number)
=> a and b are odd (proven)
Answer:
g would equal 4
Step-by-step explanation:
Answer:
1500
Step-by-step explanation:
1,200 x 0.25 = 300
300 + 1,200 = 1,500