I really need help do can someone do it step by step so I can understand plz​

4525.2 floz

Step-by-step explanation:

so, we need to calculate the volume of the cylinder.

as with all straight objects, it is simply the base area times is height.

careful - we got the diameter. the radius r is half the diameter. so, r = 20/2 = 10 in

the volume of an object is airways the same, no matter how we orient it. it can be standing up, laying on its side, balancing at an angle, ... - none of that has an impact on the volume (or its surface area).

so, we simply say that the base area is the circle, and we also know the height.

the area of a circle is

Ac = pi×r²

and so, the volume of the cylinder

Vc = pi×r² × height = pi×10² × 26 = pi×2600 =

= 8168.1408993334624201... in³

now, we know that 1 in³ = 0.554 floz

so, now we need to adapt our in³ to floz by using that formula.

be careful with the direction of that adaptation. clearly, 1 floz is more than 1 in³. therefore, the number in floz has to be much smaller than in in³.

so, we know, we multiply our in³ by 0.554.

8168.1408993334624201... × 0.554 =

= 4525.1500582307381807... =

= 4525.2 floz

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.