The rational numbers will best define- The height of an airplane as it descends to an airport runway.
This is because it includes fractions as well.
Irrational, integers, whole numbers cannot be used in this situation.
So... get the like-terms and add/subtract
see what that gives you
Answer:
dont remember the property names but subtract 10 on both sides then divide by 7 on both sides
Answer:
$45
Step-by-step explanation:
1.54(x) = 69.3
Divide both sides by 1.54
x = 45
It will touch the x-axis when y=0 so:
3x^2-5x+1=0 subtract 1 from both sides
3x^2-5x=-1 divide all terms by 3
x^2-5x/3=-1/3 halve the linear coefficient, square it, then add that to both sides....(5/6)^2=25/36
x^2-5x/3+25/36=25/36-12/36 now the left side is a perfect square
(x-5/6)^2=13/36
(x-5/6)^2=1/3 take the square root of both sides
x-5/6=±√(1/3) add 5/6 to both sides
x=5/6±√(1/3)
So the graph will intersect the x-axis at two points when:
x=5/6-√(1/3) and 5/6+√(1/3)
