You solve the parenthesis first . Then you multiply it by 10 . Then you add that and answer to 2x . So in total you would get 22x or 22x^2
Answer:
2) -81t² +16
Step-by-step explanation:
(9t -4)(-9t -4) = (9t x -9t) + (9t x -4) + (-4 x -9t) + (-4 x -4)
= -81t² - 36t + 36t + 16
= -81t² + 16
Answer:
50 degrees.
Step-by-step explanation:
Angle FGE = 
because angles on a straight line add up to 180 degrees.
Angle EFG = 
(Angles in a triangle add up to 180)
Add 20 to both sides:
Subtract 6x from both sides:
Angle 
Okay so.
2/5=24/60 (multiply 2/5 by 12)
2/3=40/60 (multiply 2/3 by 20)
1/4=15/60 (multiply 1/4 by 15)
Then,
Add 24/60 with 40/60 which is 64/60 after you get that you subtract by 15/60 and you get 49/60.
Hope this helps!^^
Notice, 3 decimals, so, we can just use 3 zeros, thus
