Tanya walked for 17 minutes from her home to a friend that lives 1.5 kilometers away. d(t) models tanyas remaining distance to walk in kilometers, t minutes since she left home. what number type is more appropriate for the domain of d

The most appropriate number type will be whole numbers.

Step-by-step explanation:

We have been given that Tanya walked for 17 minutes from her home to a friend that lives 1.5 kilometers away. Also, that D(t) models Tanya's remaining distance to walk in kilometers, t minutes since she left home.

We know that time 't' can take any integer value between 0 and 17.

Therefore, the number type that would be most appropriate for domain of d(t) will be whole numbers.

  5.   y=6; de=7; fg=8

  6.   x=4.2; jl=14.2; mn=13

step-by-step explanation:

when chords cross inside a circle, the product of the segment lengths is a constant.

5. dh×eh = fh×gh

  y = gh = dh×eh/fh = 3×4/2 . . . divide by the coefficient of gh

  y = 6

of course, the total chord length is the sum of the lengths of its segments.

  de = dh +eh = 3+4 = 7

  fg = fh +gh = 2+6 = 8

6. this problem works the same way as the previous one.

  x = lk = mk×nk/jk = 6×7/10 = 4.2

  jl = jk +lk = 10 +4.2 = 14.2

  mn = mk +nk = 6 +7 = 13

comment on chords and secants

you can think of the points h (problem 5) and k (problem 6) as points where the chords meet. a chord is part of a secant line, a line that intersects the circle in two points. one can also consider these points (h or k) to be the points where the respective secant lines meet.

then, the product that is a constant is the product of the distance from the meeting point (h or k) to one circle intersection with the distance from that meeting point to the other circle intersection. for problem 5, the constant is the product hd×he = hf×hg.

it turns out that this rule regarding the products of lengths to points of intersection is also true when the secants intersect outside the circle.

that is, you only need to remember one rule to work both kinds of problems.

to have more of what you want like money

step-by-step explanation:

save it by not spending on unnecessary stuff and have more