<span>9r - 2 = 16
9r = 16 + 2
9r = 18
r = 2
Answer : B) 2</span>
Answer:
a²/9
Step-by-step explanation:
(27a⁻³) (-⅔) = 27^(-⅔) × (a⁻³)^(-⅔)
= (3³)^(-⅔) × a²
= 3⁻²a²
= a²/9
153=9*17=3*3*17
so the prime factorization is 3*3*17 (also can be written

*17)
Answer:
4' - 9.64
Step-by-step explanation:
Total rise = 2' - 7"
Total run = 3' - 9"
Converting to inches :
1' = 12" ; 1 feet = 12 inches
2' = 2 * 12 = 24"
3' = 3 * 12 = 36"
Total rise = 24" + 7" = 31"
Total run = 36" + 9" = 45"
Length of stringer = hypotenus
Hypotenus = √(total rise² + total run²)
Hypotenus = √(31² + 45²)
Hypotenus = 54.644304"
= 4' - 9.64"