arunamvr
27.10.2020 •
Mathematics
The area of a rectangular lot is ( 6x²- 15xy - 4xz -10yz ) m².Find the possible expression for it's dimensions.
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Ответ:
The dimensions of the rectangular lot are (3x-2z) m and (2x-5y) m
Step-by-step explanation:
Mathematically, the area of a rectangle is the product of its sides
Hence A = L * B
By actually factorizing the given expression, we can get two linear products that will represent the dimensions of the sides of the rectangle
Thus, we have
6x^2 - 15xy - 4xz -10yz = 3x( 2x - 5y) - 2z(2x-5y)
= (3x-2z)(2x-5y)
Ответ:
73/80
Step-by-step explanation:
multiples of 11 between 1 and 80 are 11,22,33,44,55,66,77
number of terms=7
P(multiple of 11)=7/80
P(not a multiple of 11)=1-7/80=73/80