Answer:
30%
but its correct
Answer:6x+126in^2
Step-by-step explanation:
a =15 long
b=x. Wide
A=ax
A=15x represenrs picture area
Add on each side of picture 3 in
a1=15+6=21 in
b1=x+6
Calculate area
A1=a1b1
A1=21(x+6)
Area of frame = A1-A
Area of frame=21(x+6)-15x=21x-15x+126=6x+126in^2
1, 9, 36, 84, 126, 126, 84, 36, 9, 1.
Using the binomial theorem:
(x + y)^9 = x^9 + 9C1 x^8 y + 9C2 x^7y^2 + 9C3x^6y^3 + 9C4x^5y^4 + 9C5x^4y^5 +
9C6x^3y^6 + 9C7x^2y^7 + 9C8xy^8 + y^9
The coefficients are
Answer: bet 13x-36+(-1+3a)x2
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a4x-ax2
