Answer:
150
Step-by-step explanation:
S.A.=2(wl+hl+hw)=
2((3x9)+(4x3)+(4x9))
2(27+12+36)
2(75)
150
under a rotation about the origin of 180°
a point (x, y ) → (- x, - y )
hence D is correct, both the x and y coordinates of the points on ΔA'B'C' have opposite signs from the corresponding points on ΔABC
Step-by-step explanation:
1 _21:00_ , _22:10_, 1:10
2. 1:20
3. 18:00
4. 21:35
Answer:
20
Step-by-step explanation:
Substitute x in y = 4x for 5. So now the equations stands as y = (4)(5). 4 times 5 equals 20
Width = xlength = 4x Use the formula for the perimeter of a rectangle to solve for x: perimeter = 2(length) + 2(width)50 = 2(4x) + 2(x)50 = 8x + 2x50 = 10x5 = x The width (x) is 5 feet and the length (4x) is 20 feet.
