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3 years ago

For most of the 1900s, the legal voting age was 16 18 21 24

Advanced Placement (AP)

2 answers:

madreJ [45]3 years ago

3 0

21 is the right one on ed

ch4aika [34]3 years ago

3 0

Answer: 21

Explanation: In the 1900’s the age that was declared legal to cast a vote was minimum, 21 years of age. So any citizen who was 21 could vote, unlike today (the legal age is 18 to vote). The idea behind opting for this age was to make sure that the person casting the vote is mature enough and have some experience in life, so they choose more wisely.

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Surface Area of a can is 517.8 cm^2. Maximize the volume of this can using the measured surface area.

mafiozo [28]

Answer:

$r = 5.24$ --- Radius

$h = 10.48$ --- Height

Explanation:

Given

Object: Can (Cylinder)

$Surface\ Area = 517.8cm^2$

Required

Maximize the volume

The surface area is:

$S.A = 2\pi r^2 + 2\pi rh$

Substitute 517.8 for S.A

$517.8 = 2\pi r^2 + 2\pi rh$

Divide through by 2

$258.9 = \pi r^2 + \pi rh$

Factorize:

$258.9 = \pi r(r + h)$

Divide through by $\pi r$

$\frac{258.9}{\pi r} = r + h$

Make h the subject

$h = \frac{258.9}{\pi r} - r$ --- (1)

Volume (V) is calculated as:

$V = \pi r^2h$

Substitute (1) for h

$V = \pi r^2(\frac{258.9}{\pi r} - r)$

Open Bracket

$V = 258.9r - \pi r^3$

Differentiate V

$V' = 258.9 - 3\pi r^2$

Set V' to 0

$0 = 258.9 - 3\pi r^2$

Collect Like Terms

$3\pi r^2 = 258.9$

Divide through by 3

$\pi r^2 = 86.3$

Divide through by $\pi$

$r^2 = \frac{86.3}{\pi}$

$r^2 = \frac{86.3*7}{22}$

$r^2 = \frac{604.1}{22}$

Take square root of both sides

$r = \sqrt{\frac{604.1}{22}$

$r = 5.24$

Recall that:

$h = \frac{258.9}{\pi r} - r$

Substitute 5.24 for r

$h = \frac{258.9}{\pi * 5.24} - 5.24$

$h = \frac{258.9*7}{22 * 5.24} - 5.24$

$h = \frac{1812.3}{115.28} - 5.24$

$h = 15.72 - 5.24$

$h = 10.48$

Hence, the dimension that maximize the volume is:

$r = 5.24$ --- Radius

$h = 10.48$ --- Height

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3 years ago

Every Bill which shall have passed the House of Representatives and the Senate, shall, before it become a Law, be presented to t

Maslowich

I am not sure. But Maybe someone else can help. I am sorry!!!!

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Acetone is a flammable solvent used in the making of plastics. The density is 790kg/m3 to g/cm3 , 1,000 and , 10^6 these operati

timama [110]

Answer: 0.790 g/cm3

Explanation:

The density of acetone is 790 Kg/m3.

To convert from Kg to g we multiply by 1000 (1 Kg = 1000 g)

To convert from m3 to cm3 we multiply by 10∧6

So, The density of acetone in (g/cm3) = (790 x 1000) / (10∧6) = 0.79 g/cm3

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Identity one key similarity and one key difference between societies that developed in central and South America to those that d

stich3 [128]

One key similarity would be that they all started off as colonial powers ruled by larger power in Europe. Most of these nations gained independence through revolution as well, while a smaller amount gained it by the European state giving the colony independence (canada, Jamaica), Cuba was also technically both (revolution against spanish to be ruled by America, given Independence by America). A big difference is that most of North america was ruled by the British and the French, while South and Central America were settled predominantly by the Spanish and Portuguese. This resulted in huge differences in culture, including language (English/french vs Spanish/Portuguese) and religion (Protestantism vs Catholicism).

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3 years ago

Leaders who can motivate people usually have teams with

Mrac [35]

Leaders who can motivate people usually have teams with positive work attitudes. These attitudes are fundamental for generating confidence.

<h3>What is a leader?</h3>

A leader is a skilled person who generally exhibits a positive attitude toward facing challenges and problems.

The leaders can generate confidence between the members of a team through these positive attitudes.

An excellent leader should think about the team instead of individual non-altruistic objectives.

Learn more about leader attitudes here:

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2 years ago

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