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As the names were announced, Omar’s posture straightened. He nodded and stifled a smile as his legs bounced a subtle beat beneath his desk. He closed his eyes briefly, silently willing himself to save his reaction for later. The underlined words reveal Omar’s pride. frustration. discomfort. curiosity.

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# Tag: closed

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### Answered by answersmine AT 22/10/2019 – 04:05 AM

The answer should be **D. Argumentative**! It makes an argument that also persuades you in a different way but only of the sense that this time it is knocking what argument you made down. Have a good rest of your day!

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A gas is located inside a closed container. if the gas is allowed to occupy more volume inside the container, what will happen to the pressure? (note: there is no gas added to the container.)

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The Songhai leader who left a

legacy through the reforms in his empire was Muhammad I Askia or Muhammad Ture.

Under his governance, he began organizing his land by setting up regions which

were under the leadership of governors together with their armies under the

ruling of a general and an admiral. He

also began setting departments and offices for finance, justice, interior, agriculture,

etc. He indeed strengthened the administrative system of what his predecessor

had left unorganized. After a lot of

quests and changes in his governance, he was able to expand and strengthened

his empire. In 1528, he was defeated and overthrown by his son, Askia Musa.

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**Solution:**

The Given Rectangle having dimensions

Length = 80 cm

Breadth = 50 cm

Let the Six squares which has been cut from this rectangle have side of length a cm.

Area of each square = (Side)²= a²

Area of 6 Identical Squares = 6 × a²= 6 a²

If four squares are cut from four corners and two along Length,

then , Length of Box = (80 – 3 a)cm, Breadth of Box = (50 – 2 a)cm, Height = a cm

Volume of Box =V = Length × Breadth × Height

V = (80 – 3 a)× (50 – 2 a)× a

V = 4000 a – 310 a² + 6 a³

For Maximum Volume

V’= 0 , where V’ = Derivative of V with respect to a.

V’= 4000 – 620 a + 18 a²

V’ =0

18 a² – 620 a + 4000= 0

9 a² – 310 a + 2000=0

using determinant method

cm

V”=1 8 a – 310 = -ve

which shows , when a = 8.6 cm , volume is maximum.

So, V = 4000×8.6 – 310×(8.6)²+6×(8.6)³=15288.736 cm³

OR

If four squares are cut from four corners and two along Breadth,

then , Length of Box = (80 – 2 a)cm, Breadth of Box = (50 – 3 a)cm, Height = a cm

Volume of Box =V = Length × Breadth × Height

V = (80 – 2 a)× (50 – 3 a)× a

V = 4000 a – 340 a² + 6 a³

For Maximum Volume

V’= 0 , where V’ = Derivative of V with respect to a.

V’= 4000 – 680 a + 18 a²

V’ =0

18 a² – 680 a + 4000= 0

9 a² – 340 a + 2000=0

Using Determinant method

cm

V”=18 a -340= -ve value when a = 7.6 cm, shows volume is maximum when a = 7.6 cm

V= 4000×7.6 -340 × (7.6)² +6× (7.6)³=13395.456 cubic cm

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Fg=(G*m₁*m₂)/r₂, where G=6.67*10^-11 m³ kg⁻¹ s⁻² is the gravitational constant, m₁ and m₂ are the masses of the two bodies and r is the distance between those bodies.

Due to the gravitational attraction the pencil and the eraser will attract if we there is no friction on the surface.

m₁=10 g=0.01 kg is the mass of the pencil

m₂=20 g=0.02 kg is the mass of the eraser

r=2.5 cm = 0.025 m

First we calculate the Fg:

Fg={(6.67*10^-11)*0.01*0.02}/(0.025²)=2.1344*10^-11 N

To get the velocity v of the pencil:

v²=2as, where a is the acceleration of the pencil and s is the path. In our case s=r so we can write:

v²=2ar

a=Fg/m₁= 2.133*10^-9 m/s²

v²=2*(2.133*10^-9)*0.025=1.0665*10^-10

v=√(1.0665*10^-10)=1.0327*10^-5 m/s

We have the velocity and the acceleration, so we can calculate the time t with the equation:

t=v/a=(1.0327*10^-5)/(2.133*10^-9)=4841.6 s

1 hour has 3600 s so when we divide time t in seconds by 3600 we get time T in hours:

T=t/3600=4841.6/3600=1.3449 h.

So the time for the pencil and eraser to touch is T=1.3449 hours.

Also time T can be expressed like T= 1h and 20 mins and 41.64 s

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R=R₀(1+α(T-T₀)), where R₀ is the resistance at T₀=20°C, T is the temperature for which we want to calculate the resistance and α is the temperature coefficient for resistance.

The resistance of the copper wire increases by 18% or by 0.18, so the new value for the resistance is R=1.18*R₀.

T₀=20°C

=0.0068

R=1.18*R₀

Now we need to input that into the equation for resistance change and solve for temperature T.

1.18R₀=R₀(1+α(T-20)), R₀ cancels out,

1.18=1+α(T-20),

1.18-1=α(T-20), we divide by α,

0.18/α=T-20, we put 20 on the left side,

26.47+20=T

T=46.47°C

So the temperature on which the resistance of copper wire will increase by 18% is T=46.47°C.

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**Solution:**

The Given Rectangle having dimensions

Length = 80 cm

Breadth = 50 cm

Let the Six squares which has been cut from this rectangle have side of length a cm.

Area of each square = (Side)²= a²

Area of 6 Identical Squares = 6 × a²= 6 a²

If four squares are cut from four corners and two along Length,

then , Length of Box = (80 – 3 a)cm, Breadth of Box = (50 – 2 a)cm, Height = a cm

Volume of Box =V = Length × Breadth × Height

V = (80 – 3 a)× (50 – 2 a)× a

V = 4000 a – 310 a² + 6 a³

For Maximum Volume

V’= 0 , where V’ = Derivative of V with respect to a.

V’= 4000 – 620 a + 18 a²

V’ =0

18 a² – 620 a + 4000= 0

9 a² – 310 a + 2000=0

using determinant method

cm

V”=1 8 a – 310 = -ve

which shows , when a = 8.6 cm , volume is maximum.

So, V = 4000×8.6 – 310×(8.6)²+6×(8.6)³=15288.736 cm³

OR

If four squares are cut from four corners and two along Breadth,

then , Length of Box = (80 – 2 a)cm, Breadth of Box = (50 – 3 a)cm, Height = a cm

Volume of Box =V = Length × Breadth × Height

V = (80 – 2 a)× (50 – 3 a)× a

V = 4000 a – 340 a² + 6 a³

For Maximum Volume

V’= 0 , where V’ = Derivative of V with respect to a.

V’= 4000 – 680 a + 18 a²

V’ =0

18 a² – 680 a + 4000= 0

9 a² – 340 a + 2000=0

Using Determinant method

cm

V”=18 a -340= -ve value when a = 7.6 cm, shows volume is maximum when a = 7.6 cm

V= 4000×7.6 -340 × (7.6)² +6× (7.6)³=13395.456 cubic cm

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Which of the following statements best describes the state of the Church in the 14th century, according to the reading? A. The Church closed its doors and did not allow people to enter, accusing those ill with the plague as unacceptable sinners. B. The Church was reestablishing itself as the determiner of acceptable morality among its people. C. The Church was being reformed due to the Protestant leaders and their desire for godliness. D. The Church and its leaders were guilty of serious moral indiscretions and corruption on every level.

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Because the cart moves horizontally at 30 m/s,

The horizontal launch velocity of the projectile is

u = V*cos(x) + 30

The vertical launch velocity of the projectile is

v = V*sin(x)

d = 80 m, the distance traveled by the cart when the projectile lands in it.

The time that the cart travels is

t = (80 m)/(30 m/s) = 2.667 s

The projectile reaches maximum height in t/2 = 1.333 s.

Because v – gt =0, therefore

t = v/g

Vsin(x)/9.8 = 1.333

Vsin(x) = 13.0663 (1)

Also,

u*t = d, therefore

[Vcos(x) + 30]*2.667 = 80

Vcos(x) + 30 = 80/2.667 = 30

Vcos(x) = 0 (2)

Because V ≠ 0, cos(x) = 0 => x = 90°

This means that the projectile is fired straight up.

From (1), obtain

V*sin(90) = 13.0663

V = 13.07 m/s (nearest hundredth)

Answer:**The projectile is fired at 90° ****relative**** to the horizontal (straight up), at a velocity of 13.07 m/s.**

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What is the solution to the equation 1 over 21 multiplied by x is equal to 1 over 7? x = 3 x = 14 x = 28 x = 147 The cost of 2 bottles of ketchup is $7.96. What is the cost of each bottle of ketchup? $1.64 $2.65 $3.98 $5.96 An unknown number x is at most 20. Which graph best represents all the values of x? Number line graph with closed circle on 20 and shading to the right. Number line graph with open circle on 20 and shading to the right Number line graph with closed circle on 20 and shading to the left. Number line graph with open circle on 20 and shading to the left

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**Answer: D.) a suggested answer to a problem**

**Explanation:**

**A hypothesis is a supposition, suggested answer or a proposed explanation based on limited evidence which can be use to start an investigation**. A hypothesis is more than a guess but less than a established theory and it can be tested through study and experiments.

__A hypothesis is part of the scientific method __because it is a prediction which can be tested and the results from those experiments may disprove a hypothesis, but can never entirely prove one.

It is not a conclusion because it is an idea which tries to explain an observation. It is not information collected from experiments because hypothesis are formulated before carrying out the experiments and it is not a widely accepted idea because it just proposes a tentative explanation about a phenomenon.

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The right answer is **C, The water solution in the environment surrounding the cell has a higher solute concentration than the cell.**

Plasmolysis (the phenomena of shriveling cell) is a cellular state of the plant cell where, following loss of water, the membrane is detached from the pectocellulose wall. This is the opposite state of turgescence.

Plasmolysis occurs when a stream of water comes out of the vacuole and the plant cell through osmosis. The resulting decrease in pressure causes shrivelling of the soft parts of the plant (stems, leaves, petals), which are no longer supported by the turgor pressure.

This flow of water is created either by the lack of water in the external environment, or by the presence in this medium of a liquid more concentrated than the cellular medium. In these situations, there is a displacement of water by osmosis from the cell medium to the external medium.

Thus, the cells of a plant subjected to a drought or a water too concentrated in salts will lose their water and will be in plasmolysis. The soft parts will then shrivel up and the plant will die of water stress if the situation does not allow it to quickly reabsorb water.

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1. Overload- This involves weight lifts and high reps. This will improve his leg strength and squats, leg press and leg curls can be done for the same.

2. Progression-Now, after overload, you need to further improve your strength and flexibility. For this, addition os more weights, increase the number of reps, intensity, and duration of the workout should be increased. This will help you to make more adjustments to the health routine that you are following.

3. Specificity- Now, if you want to be an athlete, you will focus on certain specific exercise regimes, if you want to be a climber, the exercises will be different. In both these examples, leg exercises have to be followed and improved over time, as both these sport involve the strength of legs.

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**A. Advancing a particular cause or belief**

**Interest groups are a type of formal organization of people, whose primary purpose is to advance a particular cause, policy or belief that benefits them directly or one segment of society or several.**

They attempt to do so by taking several actions that include to lobby government (including members of Congress, the executive branch, etc.), engage in election activities, educate people about their interests, activities, relevance, current issues, etc., and to mobilize people who act on behalf of the organization in order to perform activities, such as writing letters, making phone calls and demonstrating, among others.

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Which statement is most likely a scientific law? A.Animals need oxygen because it unlocks the energy contained in food. B.Colonies of microscopic organisms grow faster in closed spaces because they cannot fly away. C.The oldest layers of rock lie below newer layers of rock on Earth. D.Healthy foods taste better than dangerous or spoiled foods.

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In 1830 mexico closed its borders to any further immigration by who

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