W³ + 64 = w³ + 4³ = (w+4)³ - 3*w*4(w+4) = (w+4)[(w+4)² - 12w]
(w³ + 64) ÷ (w+4)
=(w+4)[(w+4)² - 12w] ÷ (w+4)
= (w+4)² - 12w
= w² -4w + 16
Answer:
23
Step-by-step explanation:
Let n be the number
n+15 = 38
Subtract 15 from each side
n+15-15 = 38-15
n =23
The number is 23
Answer:
10580
Step-by-step explanation:
use partition to get 3x460 and 20x460
20x460=2x4600=9200
3x460=1380
9200+1380=10580
Answer:
1.4
Step-by-step explanation:
use distance formula
It is irrational, because irrational numbers are ones that keep repeating at decimals and if you concert 43/99 to a decimal, it becomes 0.434343 and repeats on forever hope this helps you :)
