For a <span>system of two linear equations to have more than one solution, the lines representing the equations must coincide, i.e. must be the same or a multiple of each other.
Example of a </span><span>system of two linear equations that has more than one solution:
2x</span> + y = 2
8x + 4y = 8
Answer:
Step-by-step explanation:
a. 4cm * 9cm * 2cm = 72 cm^3
b. 5m * 4m * 9m = 180 m^3
c. 10dm * 36 dm^2 (because the square could also be represented as 6cm * 6cm) =360 dm^3
d. (56mm)^3 = 175616 mm^3
e. 10 m * 1 m^2 (because of the square) = 10m^3
Answer:
Step-by-step explanation:
Not near enough information to know.
I ASSUME that the pool is surrounded by a walkway of constant width (w = 2 ft, from comments)
The pool shape is important as well. No mention of the shape
If the pool is circular and the walkway is 3 ft wide
the fence encloses a diameter of 110/π = 35 ft
so the diameter of the pool would be 35 - 2(3) = 29 ft.
POOL IS RECTANGULAR from comments
If the pool is square and the walkway is 2 ft wide, each side of the fence is
110 / 4 = 27.5 ft and the pool would be 27.5 - 2(2) = 23.5 ft on a side.
There are an infinite number of rectangular width and length dimensions and walkway dimensions which would result in a fence length of 110 ft.
Edit from comments
Still an infinite number of rectangular length an width dimensions for a pool with a 2 ft wide walkway around it.
Let's say that we are told the pool is 12 ft wide with 2 ft walkway.
Let L be the pool length
110 = 2(12 + 2(2)) + 2(L + 2(2))
110 = 32 + 2L + 8
70 = 2L
L = 35 ft
You put a value in for r, and keep trying until they equal out, let me know if this helps, or if you need more
Answer:
D) -9 + 9
Step-by-step explanation:
The Additive Inverse Property is where the sum of any number and its inverse (opposite) is zero. In this case, we need to have an expression that equals zero, and two numbers that are opposite of each other. This would be D) -9 + 9 because these two numbers are inverses of each other, and the expression equals 0.