3a + 6b = 45
2a - 2b = -12....multiply by 3
----------------
3a + 6b = 45
6a - 6b = - 36 ...(result of multiplying by 3)
---------------add
9a = 9
a = 1
3a + 6b = 45
3(1) + 6b = 45
3 + 6b = 45
6b = 45 - 3
6b = 42
b = 7
solution is : (1,7)
Answer:
153.94 inches cubed
Step-by-step explanation:
plug in 7 as the radius
the formula is A = πr^2
Using an online calculator, you can determine that the missing factor is:
(3x - 1)
What you want to do is find the comon demominator and than go from rhere pluse you should be able to go and look back at the lesson if you dont get ut well its like that for me
THE PIC IS BLUR
PLS MARK ME AS BRAINLIEST
