Samson Kindie Yen 08/10/2023 at 8:40 pm 20. 27’⅔*(81/16)’-¼=9*2/3=6 18. 9’2y*2’x=72 3’4y*2’x=9*8 3’4y*2’x=3’2*2’3 4y=2 & x=3 So, y=½ &x=3 21. p’3*q=189=27*7=3’3*7 so, p=3 &q=7 Reply
Viswanadhan VS 08/10/2023 at 8:40 pm 9^2y×2^x=72=9×8 y=0 and x=3 gives, 9^0×2^3=9×8=72 Therefore we get, x=3, y=0 Reply
Leonard Sudberg 08/10/2023 at 8:40 pm 18 ) 9 ^1 x 2^3 = 72 so y= 1/2 x = 3 20). 27^ (2/3 ) = 9 (81/16 ) ^ (-1/4)= 2/3 9 x 2/3 = 6 ANS 21). P^3 x q = 189 Factor. 9 x21 3x3x3x7 P= 3. Q=7 Reply
18.X= 3, Y=1/2
y=1/2 and x=3
Easy
20. 27’⅔*(81/16)’-¼=9*2/3=6
18. 9’2y*2’x=72
3’4y*2’x=9*8
3’4y*2’x=3’2*2’3
4y=2 & x=3
So, y=½ &x=3
21. p’3*q=189=27*7=3’3*7
so, p=3 &q=7
9^2y×2^x=72=9×8
y=0 and x=3 gives,
9^0×2^3=9×8=72
Therefore we get,
x=3, y=0
18 ) 9 ^1 x 2^3 = 72 so
y= 1/2 x = 3
20). 27^ (2/3 ) = 9
(81/16 ) ^ (-1/4)= 2/3
9 x 2/3 = 6 ANS
21). P^3 x q = 189
Factor. 9 x21
3x3x3x7
P= 3. Q=7
Easy come ib
18) y=1/2 , x=3
20) 6
21) p=3,q=7