Due to an accident on the highway, the Stanford family. is delayed driving to their weekend destination. Their average speed is 30 miles per hour for the firs t portion of their trip as they come upon the accident site. After passing the accident site, their average speed
increases to 50 miles per hour.
30x+50(x+2)
The Stanford family can express their average speed for the entire trip as
2.c +2
What is the meaning of the parts of this rational expression in the context of the situation?

there are lots of ways.   pick's theorem tells us if the vertices are lattice points the area a is

a = b/2 + i - 1

where b is the number of boundary lattice points and i is the number of interior lattice points.

in the figure i count b=16, i=50 so

a = 8 + 50 - 1 = 57

let's try the shoelace formula.   the area is half the sum of the cross products of the sides.  

a(-2,6)   -2(2)-6(-5) = 26

b(-5,2)   -5(-3) - 2(-2) = 19

c(-2,-3) -2(-3) - (-3)(4) = 18

d(4,-3)   4(3) - (-3)(5) = 27

e(5,3)   5(3) - 3(1) = 12

f(1,3)     1(6) - 3(-2) = 12

a(-2,6)

each of the cross products is twice the area of the triangle with the associated side and one vertex the origin. so the area of abo=26/2=13.

area = (1/2) (26 + 19 +   18 + 27 + 12 + 12) = 57

that checks!

i think asking google will you get the answer to that question

multiple all that

step-by-step explanation:

27×17

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.