Value of the expression will be 7
<u><em>Explanation</em></u>
Given value of the variables are :
and 
Given expression: 
So, <u>plugging the values</u> of
and
into the above expression, we will get...

So, the value of the expression will be 7.
The first, second, fifth, and seventh are all true
the answer is CD m=y2-y1/x2-x1
m= 10-2/4-6= 8/-2=-4
If 2 segments are parallel they have 2 have same slope
The surface area of a rectangular prism is 2210 cm^2 Then the other dimension is 70.3 cm
<h3><u>
Solution:</u></h3>
Given that surface area of rectangular prism is 2210 square centimeter
Also given that two of dimensions are 5 cm and 10 cm
To find: other dimension
<em><u>The total surface area of the rectangular prism is gievn as:</u></em>

Where, "l" is the length and "b" is the breadth and "h" is the height
The given values are: l = 5cm and b = 10cm
On substituting the given values in formula we get,

Thus the other dimension is 70.3 cm

=gradient

Perpendicular gradient therefore is

With this info, y-y1=m(x-x1)
5(y-8)=-1(x-6)
5y-40=-x+6
5y=-x+46