The following data represents the heights, in inches, of the girls in the church choir. Construct a dot plot of the heights of the girls in the choir: 48, 50, 62, 55, 58, 60, 54, 60, 52, 54, 52, 55, 56, 52, 51, 52, 51

Complete your work in the space provided or upload a file that can display math symbols if your work requires it.

this answer is !

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm

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.

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.