The total cost to put the fence around the rectangular garden is $(2x - 2)
Step-by-step explanation:
Perimeter of the rectangular garden = 2[(3x - 5) +2x]
= 2(5x - 5) ft.
Total cost = 2(5x - 5) /5
=$ 2x - 2
The cost for putting the fence around the rectangular garden is $ (2x - 2)
1 + 50 x 30
We do multiplication before addition
1 + 50 x 30 = 1 + 1500 = 1501
Answer: 1501
EXPLANATION
Given the expression 2y(x-y) +12=5x , plugging in x=3 into the expression,
2y(3-y) + 12 = 5*3
6y -2y^2 + 12 = 15
Rearranging terms:
Now, we need to apply the quadratic equation:
Multiplying terms:
Subtracting numbers:
Simplifying:
Answer:
(-8,-3)
Step-by-step explanation:
This question is similar to the vertex form of a quadratic equation, so you can think of this equation like f(x) = (x-h)+k. Using this equation, you can determine the vertex (h,k) of |x+8|-3, which is (-8,-3).
Hey there!
So it's mentioned that the line is parallel, hence their gradient are equals.
From the eqn, y = 2x + 1 , you'll find that the gradient is 2 (conveniently, the equation of the line is directly derived from y=mx+c, where m is the gradient.)
Using the coordinates (2, -1) as the line passes through those points, make a new equation (with y=mx+c) with those points and the gradient 2 in order to find constant c.
-1=(2)(2) + c
c=-5
hence, the equation is y=2x-5.
The whole working is actually very short so I hope I didn't overcomplicate things :(