Answer: -6 = x
Step-by-step explanation: Start by distributing through the parentheses
on each side of the equation to get 5x - 40 = 7x - 28.
Now move your x's to the right and
numbers to the right and you get -12 = 2x.
Divide both sides by 2 and -6 = x
Answer:
17.32
Step-by-step explanation:
to get TU
sinФ = opposite/hypothenus
sin 60° = TU/20
√3/2=TU/20
( √3/2 ) x 20 = 10√3 = TU = 17.3205080757 = 17.32
(b2+4b+4)(-b+3)
(b2)(-b)+(b2)(3)+(4b)(-b)+(4b)(3)+(4)(-b)+(4)(3)
-b3+3b2-4b2+12b-4b+12
-b3-b2+8b+1