a³ + b³ + c³ + 3abc = ( a + b + c)(a² + b² + c² + ab + bc + ca)
if a + b + c = 0. then a³ + b³ + c³ = 3abc
here a + b + c = 15 + (-9) + (-6)
a + b + c = 15 - 15
a + b + c = 0
so a³ + b³ + c³ = 3abc
15³ + (-9)³ + (-6)³ = 3(15)(-9)(-6)
= 2430
so the answer is 2430
Answer:
#1: 10 bags
#2: 5 1/2 pounds
#3: 5 bags
Step-by-step explanation:
for number one you just count all the x
for number two I added all the pounds of the bags
for number 3 (im not sure if my answer was right for this one) theres only 5 x's on 1/2. so I think the answer is 5.
total length = total perimeter of dance floor
20 x 2 + 30 x 2 =
40 + 60 =
100 feet
Answer is D. 100
please mark brainliest
Answer:
more info??
Step-by-step explanation:
