The perimeter of a square is a^2. In this case a= (4x-2y) so a^2=(4x-2y)^2 , a^2={16(x)^2-16xy+4(y)^2}
7x + 10 = 13(12x - 3) + 14x
7x + 10 = 156x - 39 + 14x
10 + 39 = 156x - 7x + 14x
49 = 163x
x = 49/163
Answer:
10
Step-by-step explanation:
This is a right triangle, so we can use the Pythagorean theorem
a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse
9^2 + (sqrt(19))^2=c^2
81+19 = c^2
100 = c^2
Take the square root of each side
sqrt(100) = sqrt(c^2)
10 = c
The hypotenuse is 10
Answer: B. 28.26 ft2
Step-by-step explanation: I did this in school and got it right.
