Heights (in centimeters) and weights (in kilograms) of 7
7
supermodels are given below. Find the regression equation, letting the first variable be the independent (x)
(
x
)
variable, and predict the weight of a supermodel who is 177
177
cm tall.
HeightWeight17654172521745416647176 561765517858
Height
176 172 174 166 176 176 178
Weight
54 52 54 47 56 55 58
The regression equation is ŷ=
y
^
=
+
+
x.
x
.
The best predicted weight of a supermodel who is 177
177
cm tall is .

dhdhth

step-by-step explanation:

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.