Answer:
The coefficient of the 2nd term of trinomial is 18.
Step-by-step explanation:
You can expand in a faster way by using the formula, (a+b)² = a²+2ab+b² :
(3x+3)² = (3x)² + 2(3x)(3) + 3²
= 9a² + 18a + 9
OR
You can expand it by doing step by step :
(3x+3)² = (3x+3)(3x+3)
= 3x(3x) + 3x(3) + 3(3x) + 3(3)
= 9x² + 9x + 9x + 9
= 9x² + 18x + 9
Answer:
the answer is 12 I hope this answer helps you
Answer:
I think the answer would be 60.
Step-by-step explanation:
Hopefully this helps ya out but I may be wrong so please don't get angry.
Rememer that the perimiter is the distance around
it is
P=L+L+W+W or
P=2L+2W or
P=2(L+W)
so
a.
tenis
L=2x+6
W=x
P=2(2x+6+x)=2(3x+6)=6x+12
basketball
L=3x-14
W=1/2x+32
P=2(3x-14+1/2x+32)=2(3.5x+18)=7x+36
b.
how much bigger is basketball than tennis
7x+36=bigger+6x+12
minus 6x+12 both sides
x+24=bigger
it is x+24 bigger
c.
x=36
Ptenis=6x+12=6(36)+12=216+12=228ft
Pbasketball=7x+36=7(36)+36=252+36=288ft
Answer:
A
Step-by-step explanation:
Same reason as d
That's the answer.
