Time (weeks) Weight (lb)
4
lo
150
1
144
2
143
3
141
140
15
(137
16
(137
18
(129
132
Using A notation, determine the average rate of change of weight over the last four weeks of the program. (include weeks
4 and 8 in your calculations)
a. -2.75 pounds per week
b. +2.75 pounds per week
-4.0 pounds per week
d. +0.38 pounds per week
C.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a