Answer:
Z=53p/d-84/d
Step-by-step explanation:
hope it help's
2x + 3y = 9
x + 5y = 8....multiply by -2
----------------
2x + 3y = 9
-2x - 10y = -16 (result of multiplying by -2)
---------------add
-7y = - 7
y = -7/-7
y = 1
x + 5y = 8
x + 5(1) = 8
x + 5 = 8
x = 8 - 5
x = 3
solution is (3,1)
86,400 in scientific notation is <span>8.64 x 10^4</span>
Answer:
x=5 ; Area= 84m²
Step-by-step explanation:
(x+2)²+(4x+2)²=(5x)²
x²+4+4x+16x²+16+32x=25x²
8x²-36x-20x=0
x=5;x=-1
hypotenuse should be positive
x=5
area=lxb/2