The United States was governed by the

Pre Algebra

JulijaS [17]

Question:

Use the formulas below to find the surface area and volume of the cube, sphere, and cylinder “ice cubes”.

“Ice cube” measurements:

• Cube: s = 3 cm

• Sphere: r = 1 cm

• Cylinder: r = 2 cm and h= 3 cm

Note: After you find the surface area and volume of each shape, divide the surface area by the volume to find the surface area to volume ratio expressed as a single number. This should go in the last column.

Answer:

Cube:

Surface area = $6s^2$

Surface area = 6 (3)(3)

Surface area = $54 cm^2$

Volume = $s^3$

Volume = $(3)^3$

Volume = $27 cm^3$

Surface Area to Volume Ratio = $\frac{54}{27}$ = $\frac{2}{1}$ = 2:1

Sphere:

Surface area = $4\pi r^2$

Surface area = $4 \pi (1)(1)$

Surface area = $12.566cm^2$

Surface area = $13 cm^2$ (rounding off )

Volume = $\frac{4}{3} \pi r^3$

Volume = $\frac{4}{3} \pi (1)^3$

Volume = $4.188 cm^3$

Volume = $4 cm^3$ (rounding off )

Surface Area to Volume Ratio = $\frac{13}{4}$ = 13 : 1

Cylinder:

Surface Area $= 2\pi r^2 + 2 \pi rh$

Surface Area = $2\pi (2)^2 + 2 \pi (2)(3)$

Surface Area = $2\pi (4) + 2 \pi (6)$

Surface Area = $8 \pi + 12 \pi$

Surface Area = $20 \pi$

Surface Area = $62.83 cm^2$

Surface area = 63 $cm^2$ (rounding off )

Volume = $\pi r^2 h$

Volume = $\pi (2)^2 (3)$

Volume = $\pi (4) (3)$

Volume = $12 \pi$

Volume = 37 .699

Volume = 38 $cm^3$

Surface Area to Volume Ratio = $\frac{63}{38}$ = 68 : 38

3 0

3 years ago

Which of the following is a responsibility of the fire chief

AfilCa [17]

Answer:

It would be D

Explanation:

7 0

3 years ago

According to captain Cochran, undercover operations are A.) Proactive B.) Reactive C.) Excessive D.) Insufficient

Anna35 [415]

The answer is C. Excessive

7 0

3 years ago

When interest groups meet with lawmakers to encourage them to pass laws to the advantage of their group

Alex_Xolod [135]

Answer:

Lobbying

Explanation:

Propaganda is information (true, false, or doctored) spread to harm an individual, group, ideology, etc.

Gerrymandering is dividing a state into election districts in order to give one political party an advantage over the other in elections.

Lobbying is an attempt to influence the decisions and actions (like votes) of members of a legislative body.

A political action committee is formed by a group with a common political or policy interest. Political action committees gain and contribute funds to a candidate (or candidates) who support their beliefs. These groups are able to make significantly larger donations than most individuals.

8 0

3 years ago

Which type of job do you consider to be more important: doing crime-related research or working directly with offenders and vict

VLD [36.1K]

In my opinion, working directly with the offenders and victims are more important rather than doing crime-related research, because working with them helps us understand them better on how they act and reason towards dealing with their personal respective feelings.

I hope it somehow helps you

4 0

3 years ago