40 because 3+6+12 = 21 and 8+11+21 =40
Step-by-step explanation: Devide and do it yourself.....
ANSWER : it is a right angle
The expression can be simplified as:
k^3(k7/5)^-5
= k^(3+-5) * (7/5)^-5
(Collecting the powers of k at one side and the constants at other side)
= k^-2 * (5/7)^5
(Solving thr integer powers)
= k^-2 * (3125/16807)
Answer:
878 gas
Step-by-step explanation:
89=5=7=9
