The perimeter of square ABCD is half of the perimeter of parallelogram.
Get all the n together so 3n+2n=5n
5n-17=38
Minus 17 from both sides
5n= 55
N= 11
Answer:
10.5 units²
Step-by-step explanation:
Area of trapezoid = ½(a + b)h
where,
a = SK = 2 units
b = OC = 5 units
h = SO = 3 units
Plug in the values
Area = ½(2 + 5)*3
Area = ½(7)*3
Area = 10.5 units²
To find how many solution our system has, we are going to find the slope of each equation.
equation (1)
equation (2)
To find the slope, we are going to express both equations in the form:
where
is the slope
Notice that equation (1) is already in the form
; from equation (1) we can infer that
To express equation (2) in the form
, we are going to add
to both sides of the equation:
Now, we can infer that the slope of equation (2) is
. Since both equations have the same slope, we are dealing with parallel lines; parallel lines don't intercept, so the system has
no solutions.
We can conclude that the correct answer is the first choice: <span>
no solutions</span>
Three and twenty-nine ten-thousandths