Answer:
2x + 3y +1
Step-by-step explanation:
-2x + 4x -6y + 9y +3 -2 (arranging)
2x + 3y + 1
the area of rectangular
is A= length x width<span>
140
feet of fancing = ---------------------------------- (the above line)
!-----------------------------------------!
!
!
x ! thelargest enclosed area ! x
!
!
!---------------------------------------- !
140 -(x+x)
<span>so the
area is A = (140-2x) (x)= 140x-2x²</span></span>
Yes if its an perpendicular angle
(-2*(-2)-3,-3(-2)-5)
(4-3,6-5)
(1.1)
The coordinate is (1,1)
Answer: Line AB = 5.2
Step-by-step explanation: We start with triangle ACD, with two sides given and angle A which shall be the reference angle can be calculated as,
SinA = opposite/hypotenuse
Where the opposite is 4.3 (line facing the reference angle) and the hypotenuse is 5.6 (line facing the right angle)
SinA = 4.3/5.6
SinA = 0.7679
By use of a calculator or a table of values
A = 50.17 degrees.
Having been told that both angles DAC and BAD are equal, then we move to triangle ADB where the reference angle is 50.17 (BAD) and the opposite is 4 (line facing the reference angle) and the unknown side is the hypotenuse (line AB).
Sin 50.17 = opposite/hypotenuse
Sin 50.17 = 4/AB
0.7679 = 4/AB
By cross multiplication we now have
AB = 4/0.7679
AB = 5.2090
Approximately to one decimal place,
AB = 5.2 units
