Answer:
192 square meters
Step-by-step explanation:
Imma assume her phones a rectangle, so you're gonna length times width
L x W = area
12 x 16 = area
192 = area
25.9766
when you multiply you do not have to line up your decimal
Answer:
162
Step-by-step explanation:
225 x 0.72 = 162
The value of xy is 114 which is a real number.
real numbers are all numbers/points that exist at the variety line.real numbers may be divided into the following divisions:Rational numbers; any range which may be written within the form ofin which p and q are co-prime integer numbers , are called rational numbers. Irrational numbers ; all numbers which cannot be written as a simple fraction is referred to as irrational numbers.
Given two real numbers x and y . Let us consider
.
According to the question their sum is 25.
.............(i)
The difference of the numbers is 13.
...........(ii)
Now we have to solve the simultaneous equation:
adding equations (i) and (ii) we get:

Substituting the value x=19 into equation (i) we get:

Now let us find the product xy

The product xy is 114 which is also a real number.
To learn more about Real numbers:
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A(b+c)=ab+ac
we have
9(72)=9*?+9*2
c=2
sub, but it must be equal to minus 2 from 72
7(70+2)=9*70+9*2
the question mark is 70
and the restult of the equation is 648
?=70