PLEASE HELP!! MATH QUESTION!! 20 points!!
2 answers:
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Answer:
The x-intercept of L is 0
Step-by-step explanation:
1) If (a,b) and (c,d) belongs to theline L, then the equation of the line using two-points formula will be:
if we want to find the x-intercept of L we should set y=0.
getting x from that equation we will have :
using distributive propertie and common denominator will be obtain
x=
as we know that ad=bc the numerator will be equal to zero. Then x=0.
2) Using the same equation of line but using the points(m,n) and (-m, -n) we will set it as:
if we want to find the x-intercept of L we should set y=0.
getting x from that equation we will have :
them
x = 0
Given :
Area of rectangle.
To Find :
The dimensions of a rectangle (in m) with area 1,728 m2 whose perimeter is as small as possible.
Solution :
Let, the dimensions of rectangle is x and y.
Area, A = xy.
x = A/y. ....1)
Perimeter, P = 2( x + y )
Putting value of x in above equation, we get :
For minimum P,
SO, it is a square.
Therefore, the dimensions are .24\sqrt{3}
Hence, this is the required solution.