(0,2),(-2,-1),(2,5)
-3x+2y=2
+3x +3x
2y/2=3x+2/2
y=1 1/2x+2
Plug in numbers for x then solve for y
Answer and explanation:
Given : A rectangular frame of uniform depth for a shadow box is to be made from a 36-in. piece of wood.
To find :
a) Write a function to represent the display area in terms of x.
The perimeter of the box is 36 inches.
Let x and y be the length and width of the box.
So,
....(1)
The area of the box is
Substitute y from (1),
The function in terms of x,
b. What dimensions should be used to maximize the display area?
As A is a quadratic function with a negative leading coefficient.
The vertex is the maximum point on the function.
So, the x-coordinate of the vertex is the value of x that will maximize the area.
Here, a=-1 and b=18
Substitute in (1),
The dimension 9 in. by 9 in. should be used maximize the display area.
c) What is the maximum area?
Substitute the value of x in the area,
The maximum area is 81 square inches.
N=55
A^2 + B^2 = C^2
48^2 + B^2 = 73^2
2304 + B^2 = 5329
-2304 -2304
B^2 = 3025
Sqrt B^2= sqrt 3025
B= 55
Answer:
Not sure if you want it factored or simplified
(-3x - 7) + (4x + 7) = x
&
Cannot factor
Step-by-step explanation: