Answer:
Surface area = 85.84 ft²
Step-by-step explanation:
Considering the fact that large rectangle area = 6 x 12 = 72 ft²
Also, the two triangles area => 2(0.5 * base * height) = 2(4 x 3.46 x 0.5) = 13.84 ft²
Hence, the total surface area is
72 + 13.84 = 85.84 ft²
Therefore, the surface area of the fabric is 85.84ft²
Answer:
.
Step-by-step explanation:
A number is a rational number if and only if it is equal to the ratio between two integers. In other words, a number is a rational number if and only if there are integers (whole numbers)
and
(
) such that
.
Thus, the in this question would be a rational number as long as there are integers
and
(
) such that
. Simply finding the right
and
would be sufficient for showing that
is rational.
Since is a terminating decimal, one possible way to find
and
is to repeatedly multiply
by
until a whole number is reached:
.
.
.
Thus, , such that
and
(both are integers, and
) would ensure that
.
Therefore, is indeed a rational number.