作业帮a rectangular game board is composed of identical squares ar
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/21 09:06:12
a rectangular game board is composed of identical squares arranged in a rectangular array of r rows
a:r^2-r
b:r^2-1
c:r^2
d：r^2+1
e:r^2+r
a rectangular game board is composed of identical squares arranged in a rectangular array of r rows and r+1columns.the r rows are numbered from 1 through r,and the r+1 columns are numbered from r through r+1，if 人》10，which of the following represents the number of squares on the board that are neither in the 4th row nor in the 7th column
a:r^2-r
b:r^2-1
c:r^2
d：r^2+1
e:r^2+r
a rectangular game board is composed of identical squares arranged in a rectangular array of r rows and r+1columns.the r rows are numbered from 1 through r,and the r+1 columns are numbered from r through r+1，if 人》10，which of the following represents the number of squares on the board that are neither in the 4th row nor in the 7th column
本题选a!
就是r*(r+1)格中去掉第4行第7列的格子后还有几格,
所以
共有:r*(r+1)-(r+r+1)+1
=r^2+r-2r-1+1=r^2-r.
就是r*(r+1)格中去掉第4行第7列的格子后还有几格,
所以
共有:r*(r+1)-(r+r+1)+1
=r^2+r-2r-1+1=r^2-r.
a rectangular game board is composed of identical squares ar
英语翻译1.2 The thermal expansion of a plastic is composed of ar
A chess board consists of 5cm squares of Blackwood and maple
Or that a pair of identical twins,reared in the same home,ar
问一道离散数学题Assume that a chocolate bar consists of n squares ar
how many—————there?a.squares is b.square ar
"Love is composed of a single soul inhabiting two bodies."
英语翻译The diagonal of the floor of a rectangular closet is 15/
The perimeter of a rectangular plot of land is 250 meterr.If
A display case is in the shape of a rectangular box with a s
英语翻译A rectangular pen with a divider is made with 120 ft of
24 meters of fencing is used to fence a rectangular garden.L