There are two ways to do this.
The first is you plug in the x-value from the point in the table and see if that gives you the y-value from the same point.
For example, your first point is (5,49), so plug in x=5:
y = -5(5)+2 = -25+2 = -23
Since that's not the y-value in (5,49), then (5,49) is not a solution for the equation.
The other option is you plug in both the x-value and the y-value to see if you get a true statement. (A solution will make the equaiton a true statement.)
For example, the first point is (5,49), so you'd plug in x=5 and y=49:
49 = -5(5)+2
49 = -25 + 2
49 = -23
Since that's not true, (5,49) is not a solution.
You'll notice you're basically doing the same thing, it's just whether you plug in one value or both and that's your choice.
Answer:
Step-by-step explanation:
2^(-3) = 1/2^3 = 1/8
A minus means put the number in the numerator if it was in the denominator.
A minus means put the number in the denominator it was in the numerator.
If there is no denominator, create one.
Answer:
Part a) The area of the actual floor is 
Part b) The ratio of the area in the drawing to the actual area is 
Step-by-step explanation:
we know that
The scale drawing is 
step 1
Find the dimensions of the square on a scale drawing
The area of a square is equal to
where
b is the length side of the square
so
step 2
Find the dimensions of the actual floor
Divide the length of the floor on the drawing by the scale drawing
step 3
Find the area of the actual floor
The area of a square is equal to
substitute
step 4
Find the ratio of the area in the drawing to the actual area
Simplify
Divide by 64 both numerator and denominator
Answer:
112.41
Step-by-step explanation:
9 percent of 1,249 is 112.41
(1) Answer: (D) Cubic (the highest power of x is 3)
(2) Answer: (C) Quadratic (power of x is 2)
(3) Answer: (B) Linear (highest degree 1)
(4) Answer: (A) Constant (the quadratic terms cancel out, constant left)
