For numbers 1 - 3, complete parts - a) Graph the points given in the table,
b) Describe the correlation.
c) Using your calculator, find a prediction equation
d) Use your prediction equation to predict the missing value.
1
15
1
1
3
$
12
4
7
9
6
11
6
7
8
15
3
0
b)
1
2 3
4
5
6
7 8 9 10 X
c)
d) Find (10,

look at the picture.

1.

ef : ab = 2 : 3

gf : cb = 2 : 3

gh : cd = 2 : 3

he : da = 2 : 3

2.

∠a ≅ ∠e

∠b ≅ ∠f

∠c ≅ ∠g

∠d ≅ ∠h

3.

use pythagorean theorem:

the length of the abcd trapezoid sides:

|ab| = 3 cm

|bc| = 10 cm

|cd| = 3(3) cm = 9 cm

|da| = 8 cm

the perimeter of abcd = 3 + 10 + 9 + 8 = 30 cm

the ratio of perimeters of the tarapezoids is equal 2 : 3.

substitute:

      cross multiply

      divide both sides by 3