標題:
Maths
發問:
1. A map has a scale of 1: 5000 . What actual distance does the length of 4 cm on the map represent ? ( in km ) 2. Factorize k^2 +28+ 11k 3. If m: n =9:7 , n:p =7:12 . Find m:n:p. 4. Simplify (1/2ab)^2 (3a^3b) (ab^3)
最佳解答:
1. A map has a scale of 1: 5000 . What actual distance does the length of 4 cm on the map represent ? ( in km ) actual distance=4x5000=20000cm=200m=0.2km 2. Factorize k^2 +28+ 11k =(k+4)(k+7) 3. If m: n =9:7 , n:p =7:12 . Find m:n:p. m:n=9:7 n:p=7:12 m:n:p=9:7:12 4. Simplify (1/2ab)^2 (3a^3b) (ab^3) =(1/4a^2b^2)(3a^3b)(ab^3) =(3a^4b^4)/(4a^2b^2) =3a^2b^2/4
Maths
發問:
1. A map has a scale of 1: 5000 . What actual distance does the length of 4 cm on the map represent ? ( in km ) 2. Factorize k^2 +28+ 11k 3. If m: n =9:7 , n:p =7:12 . Find m:n:p. 4. Simplify (1/2ab)^2 (3a^3b) (ab^3)
最佳解答:
1. A map has a scale of 1: 5000 . What actual distance does the length of 4 cm on the map represent ? ( in km ) actual distance=4x5000=20000cm=200m=0.2km 2. Factorize k^2 +28+ 11k =(k+4)(k+7) 3. If m: n =9:7 , n:p =7:12 . Find m:n:p. m:n=9:7 n:p=7:12 m:n:p=9:7:12 4. Simplify (1/2ab)^2 (3a^3b) (ab^3) =(1/4a^2b^2)(3a^3b)(ab^3) =(3a^4b^4)/(4a^2b^2) =3a^2b^2/4
此文章來自奇摩知識+如有不便請留言告知
其他解答:
文章標籤
全站熱搜
留言列表
