A signed number is a number with either a + or - in front of it. this doesn't mean that you are adding or subtracting it though. a negative number is a signed number. a positive or whole number is a signed number, but we don't usually write the + sign in front of it
hope this helped :)
Answer:

<h2>2.5 is the correct answer .</h2>
Thank you ☺️☺️
Answer:
8 hours
Step-by-step explanation:
Using the relationship
speed =
=
= 42
travelling at a rate of 42 mph , then
time =
=
= 8 hours
Answer:
m=-3
x1,y1=1,-5
we have,
y-y1=m(x-x1)
y-(-5)=-3(x-1)
y+5=-3x+3
3x+y+2=0 is the required eqn
Answer:
7: B, 8: A
Step-by-step explanation:
7. The domain of a function is the set of all of the values of x that are in it. In this case, we are given a series of points, so the domain of the function will be the set of x-coordinates of the points. The x-coordinate of a point is the first coordinate in the ordered pair representing the point. For example, in (0, 1), the x-coordinate is 0.
Applying that here, the x-coordinates of the points are 8, 5, 9, and 6, or 5, 6, 8, 9 in ascending order. Therefore, the domain of the function is {5, 6, 8, 9}, or option B.
8. In a system of coordinates, an abscissa is simply an x-coordinate (option A). For example, in our previous example point, (0, 1), the abscissa would be 0, because the point's x-coordinate is 0. Hope this helps!