Answer:
D. 64
Step-by-step explanation:
-2(square root of x) + 4 = -12
-2(square root of x) = -12 - 4
-2(square root of x) = -16
divide by negative 2 both sides
square root of x = 8
the we square both sides
(square root of x)^2 = (8)^2
therefore x = 64
I think the answer would be a
I don't see the problem sorry
Answer:
The width of the garden must be 7 feet.
Step-by-step explanation:
Total amount of fencing material = 56 feet, and given that the length of the garden = 21 feet.
Since the fence would be in the shape of a rectangle, then;
perimeter of a rectangle = 2(l + w)
where l is the length and w is the width.
So that, perimeter = 56 feet, l = 21 feet.
Thus,
56 = 2(21 + w)
28 = 21 + w
w = 28 - 21
= 7
The width of the garden must be 7 feet.