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A plane cuts a pyramid as shown in the diagram. What is the shape of the cross section? A) a hexagon B) a pentagon C) a square D) a triangle

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# Tag: cross

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### Answered by answersmine AT 22/10/2019 – 05:29 AM

Hatching is a technique used by artists to create tonal or shading effects in their drawings. Cross hatching and contour hatching are two of the 6 basic hatching techniques. Cross hatching uses fine parallel lines drawn closely together to create the illusion of shade or texture in a drawing. After laying down one pass of hatch marks, another set of hatch marks are drawn on top, usually in a perpendicular or near-perpendicular direction to the first set. While in contour hatching there is only one set of hatch marks, and these are lines follow the contours of the subject.

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Japanese wooden architecture uses a series of cross- and counter-________ to support the elaborate curved roofs of early temples

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**Answer:
**

**The integumentary system covers the surface of the body is true about the integumentry system.
**

**Explanation:
**

The integumentary system includes the skin, nails, glands, hairs, and nerves. Its main role is to act as a barrier to protect the body from the outside environment. It also retains body fluids, regulates body temperature, eliminates waste products, and protects against disease.

The integumentary system is the largest organ in the body that covers the surface of the body.

Thus,** The integumentary system covers the surface of the body is the true statement about the integumentry system.
**

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1. While the car stops, the person continues moving the way that the car were moving and then hits the obstacle in the car or the person can be thrown out of the vehicle. If the person wears belt, he will stop moving with the vehicle and won’t hit the obstacle.

**Natural Forces Affecting the Driver:**1. While the car stops, the person continues moving the way that the car were moving and then hits the obstacle in the car or the person can be thrown out of the vehicle. If the person wears belt, he will stop moving with the vehicle and won’t hit the obstacle.

2. We count approximate kinetic energy using the formula K = v^2. So the vehicle which is moving at 30 mph will have four times less kinetic energy than vehicle which is moving at 60 mph. If they have the same road conditions, the breaking distance will be four times as great for the car moving twice as fast.

3. Kinetic energy depends on object’s mass and velocity and it has direct relationship with the stopping distance. The lesser mass of the vehicle = the lesser kinetic energy and lesser stopping distance. => If both vehicles have the same velocity, then small vehicle has lesser kinetic energy than large vehicle.

4. We know that kinetic energy has this relationship with velocity K = v^2. So the best way to prepare to enter sharp curves in the roadway is to lower the speed. The most appropriate speed is 20-30 mph, but it depends on road conditions and car’s breaks condition.

5. Car crashes can happen with everyone so the best way is to be prepared. First the driver should wear a seatbelt while he’s driving. He should check his tires and breaks condition regularly. And also it’s important to slow down the vehicle while entering sharp curves. Without following these rules, the driver can get catastrophic injuries in a car crash.

**Signs, Signals, and Pavement Markings: **

1. It doesn’t matter where you go. All you need is to learn highway code. It’s very different to know the meanings of every road sign. Also, it’s necessary to check your car’s conditions and you should take some spare parts for your car in case of accidents. So wherever you go, it’s important to be prepared.

2. You should stop before crossing and take few minutes to make sure there is no train approaching. If there is no train approaching, you can pass a railroad crossing. If you see approaching train, you should wait until it will pass a railroad crossing.

3. You should stop before the lights and wait to check the traffic movement and signs. Make sure that everything is safe and pass the intersection. Don’t move fast to avoid accidents.

4. Flashing yellow light means that it’s not necessary to stop but you should to pay attention on the traffic movement. So it would be better to yield before the lights and make sure if it’s safe to move. After that you can cross the intersection.

5. The line change means that the lane changes and you can’t cross solid lines. Pay more attention on road marking because it shows how you should behave on the road or highway.

6. As you approach the next exit and your passengers need to use the restroom and get some food, you should look for green signs which indicate food and rest stops. You should to slow down if you don’t want to skip the sign.

7. When you take the exit ramp off the expressway and merge onto the next road, you see yellow lines dividing the roadway which indicates that there is oncoming traffic and this is a two-way highway.

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**
**

Categories
Recall your d = rt, distance = rate * time
In order to obtain a learners permit, teen drivers are required to pass a

written test. Typically they will prepare for this exam by completing a

drivers education course. Though not a requirement in all states,

drivers ed is the easiest way to be thoroughly prepared for the

complicated driving laws and scenarios you’ll face on the permit exam.

Once you pass your permit test and earn a permit, there may still be

certain restrictions attached to this provisional license — such as

requiring a licensed driver over a certain age to be seated in the

passenger seat, limiting your driving to daylight hours, and other

state-mandated rules.
This question is all about understanding gene mixing without evolutionary pressure, and keeping track of long, tedious calculations.
The journal entry to record the issuance is as following:

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Hey there!

**Correct answer is D. Comma or Period Inside Rule**

A. Question mark or exclamation point inside: those are not really necessary.

B. Colon or semicolon: not, a semicolon would divide the whole sentence and it would be shorten; a colon would work but after requested, when there is already a comma.

C. Question mark or Exclamation Point Outside Rule: would not work, becase it is an very polite and affirmative sentence.

**D: A comma or period inside rule: actually, just a comma would work. Please, Cooper’s dad requested, go… Cooper’s dad requested must be in between commas as it is a vocative.**

Hope this helps

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## Cross communication is

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Cross communication is

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**The basis to respond this question are:**

**1) Perpedicular lines form a 90° angle between them.**

**2) The product of the slopes of two any perpendicular lines is – 1.**

So, from that basic knowledge you can analyze each option:

**a.Lines s and t have slopes that are opposite reciprocals.**

**TRUE. Tha comes the number 2 basic condition for the perpendicular lines.**

slope_1 * slope_2 = – 1 => slope_1 = – 1 / slope_2, which is what opposite reciprocals means.

b.Lines s and t have the same slope.

FALSE. We have already stated the the slopes are opposite reciprocals.

**c.The product of the slopes of s and t is equal to -1**

**TRUE: that is one of the basic statements that you need to know and handle.**

d.The lines have the same steepness.

FALSE: the slope is a measure of steepness, so they have different steepness.

e.The lines have different y intercepts.

FALSE: the y intercepts may be equal or different. For example y = x + 2 and y = -x + 2 are perpendicular and both have the same y intercept, 2.

f.The lines never intersect.

FALSE: perpendicular lines always intersept (in a 90° angle).

**g.The intersection of s and t forms right angle.**

**TRUE: right angle = 90°.**

h.If the slope of s is 6, the slope of t is -6

FALSE. – 6 is not the opposite reciprocal of 6. The opposite reciprocal of 6 is – 1/6.

**So, the right choices are a, c and g.**

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Correct answer: **C). Genetically different haploid cells**

Meiosis is a type of cell division in which four haploid cells are produced, which are genetically different from the parent. It reduces the chromosome number exactly half as contained in the parent. That is why it is called as a reductional division.

In the first round of meiosis I homologous pairs of chromosome separate and the sister chromatids separate during meiosis II.

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The following equation of parabola is given:

p(x)= – 5 x^2 + 240 x – 2475

where p(x) = y

This is a standard form of the parabola. We need to

convert this into vertex form of equation. The equation must be in the form:

y – k = a (x – h)^2

Where h and k are the vertex of the parabola. Therefore,

y = – 5 x^2 + 240 x – 2475

y = -5 (x^2 – 48 x + 495)

Completing the square:

y = -5 (x^2 – 48 x + 495 + _) – (-5)* _

Where the value in the blank _ is = -b/2

Since b = -48 therefore,

y = -5 (x^2 – 48 x + 495 + 81) + 405

y – 405 = -5 (x^2 – 48 x + 576)

y – 405 = -5 (x – 24)^2

Therefore the vertex is at points (24, 405).

**The company should make 24 tables per day to attain maximum
profit.**

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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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The frequency of light that has a wavelength of 249 nm is about **1.20 × 10¹⁵ sec⁻¹**

### Further explanation

The term of package of electromagnetic wave radiation energy was first introduced by **Max Planck**. He termed it with **photons** with the magnitude is :

*E = Energi of A Photon ( Joule )*

*h = Planck’s Constant ( 6.63 × 10⁻³⁴ Js )*

*f = Frequency of Eletromagnetic Wave ( Hz )*

**The photoelectric effect** is an effect in which electrons are released from the metal surface when illuminated by electromagnetic waves with large enough of radiation energy.

*E = Energi of A Photon ( Joule )*

*m = Mass of an Electron ( kg )*

*v = Electron Release Speed ( m/s )*

*Ф = Work Function of Metal ( Joule )*

*q = Charge of an Electron ( Coulomb )*

*V = Stopping Potential ( Volt )*

Let us now tackle the problem !

__Given:__

λ = 249 nm = 2,49 × 10⁻⁷ m

__Unknown:__

f = ?

__Solution:__

### Learn more

### Answer details

**Grade: **College

**Subject: **Physics

**Chapter:** Quantum Physics

**Keywords:** Quantum , Physics , Photoelectric , Effect , Threshold , Wavelength , Stopping , Potential , Copper , Surface , Ultraviolet , Light

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let’s say the boat’s rate is “b” in still water, and the current’s rate is “c”

as the boat goes upstream, is not really going “b” fast, the water is not still anyway, is going much slower, is going ” b – c “, because the current’s rate is eroding speed because is going against the current.

as the boat goes downstream, is not going “b” fast either, is going faster, is going ” b + c ” fast, because is going downstream and thus with the current and the current is adding speed to it. notice, it takes longer going up, 5hrs, then coming down, 3hrs, same 150 on each way.

solve for “r”

what’s the boat’s rate? well, 30+r = b

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written test. Typically they will prepare for this exam by completing a

drivers education course. Though not a requirement in all states,

drivers ed is the easiest way to be thoroughly prepared for the

complicated driving laws and scenarios you’ll face on the permit exam.

Once you pass your permit test and earn a permit, there may still be

certain restrictions attached to this provisional license — such as

requiring a licensed driver over a certain age to be seated in the

passenger seat, limiting your driving to daylight hours, and other

state-mandated rules.

General United States Permit Requirements

While

each state has its own set of guidelines, in general, teens between 14

and 18 years of age can start the drivers education and learners permit

process. Once a teen driver has obtained a learners permit, there are

additional state-specific requirements they must meet before they can

apply for their drivers license.

Before obtaining a learners

permit in any state, a teenager is required to pass a driving knowledge

test. Drivers education is the best way for a teen to prepare for this

exam, whether the state requires it or not. In some cases, passing a

drivers ed final exam can substitute for the written exam. No matter how

the test is taken, students must pass with at least a 70% or higher,

depending on that state’s minimum. Once he or she passes, a teen driver

will be issued a learners permit. Some states require teen drivers to

have a permit for a minimum of 6 months before they can take their

drivers license exam.

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**Answer:**

D) I drove them, all three wailing, to the ships,

**Explanation:**

Odysseus chooses to do battle with the Greeks despite the fact that he wouldn’t like to leave his wife and child. Being a decent pioneer he will be, he sets aside his own wants and unselfishly offers himself to fighting for his nation.

During the war with Troy, he is splendid in fighting. He thinks of the possibility of the Trojan Horse. At the point when the Trojans open their doors and get the Trojan Horse, Odysseus and the Greeks get inside the city of Troy. Odysseus drives his men to triumph.

During his trek home from the war, Odysseus drives his men through numerous obstructions. He is brave even with beasts and hazardous ladies, for example, Circe and Calypso. Odysseus never surrenders in attempting to protect his men. Despite the fact that he loses men, he is crushed by the way that he couldn’t spare every one of his men.

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Magnetic field lines around a bar magnet a. are only perpendicular to the magnet. b. spread out from one pole and curve around to the other. c. cross back and forth over one another. d. are perfectly straight.

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Magnetic field lines around a bar magnet a. are only perpendicular to the magnet. b. spread out from one pole and curve around to the other. c. cross back and forth over one another. d. are perfectly straight.

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Is this an assertion?The ankh was the modern day cross. It was one of the most important Eqyption symbols of all time. ..

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**Answer:**

B. 30%

**Explanation:**

DNA has **four type of nitrogenous bases **in its **nucleotides** named as **adenine**, **thiamine**, **cytosine **and **guanine **and the abbreviations for these bases are** A, T, C and G **respectively. DNA is a **double stranded** **bio molecule** and the nucleotides of both the strands of DNA are joined with each other with the help of **either double bonds or triple bonds **which exist between the nitrogenous bases of its nucleotides**. **There are two type of bases, **purines **and **pyrimidines**. Adenine and guanine are purine bases while cytosine and thiamine are pyrimidine bases.

**Chargaff’s base pair rule** says that the ratio of purine bases with respect to pyrimidine bases must be **1:1 ratio**. It can be possible only if a purine base pairs with pyrimidine base of the adjacent DNA helix. So, adenine which is a purine always pairs up with thiamine which is a pyrimidine with the help of two hydrogen bonds while guanine being a purine always pairs up with cytosine which is a pyrimidine with the help of three hydrogen bonds. It simply means that a DNA molecule will have as many adenine as many there are thiamine. Also, for the same reason there will be as many cytosine as many there are guanine.

So, **20% of T** means same amount of **A which is 20%**. Hence, A and T will together form 20% + 20% = **40%** of the sample.

In the **remaining 60% sample** the amount of C and G is equal that means it will have **30% C** and **30% G.**

So, the answer is **30% C or cytosine.**

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Clas problem set for basic cross multiplying

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Hardy-Weinberg says that gene frequencies do not change without some outside pressure causing them to change. This ignores random drift, but allows some calculations to be easier, and is a good approximation in most situations.

So, if gene frequencies don’t change, then shouldn’t the genotypes of the offspring be the same as the genotypes of the parents? Yes, if and only if the population is in equilibrium. If the population is not, then genotypes will change over time until they reach equilibrium, but the gene frequencies themselves will remain constant.

Why would a population not be in equilibrium? Who knows. Maybe you have lots of orange cats and your neighbor has lots of black cats, and you decide one day to let your populations interbreed. The important thing is that you are given the gene distributions in your initial population.

Assume random breeding, then your three genotypes can breed with anyone with any of the genotypes mentioned. If you assume your population size is small, then calculation gets hard to impossible, so assume your population size is large. This allows you say that for anyone in the population, the chance of breeding with someone from any genotype is the same as the frequency of that genotype in the population.

——————————————————-

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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Debit Cash $7,000

Credit Common Stock $6,000Credit

Paid-in capital $1,000

A company must record its transaction when they issue their stock to the investors to collect funding for their business operations and investment. When the stock is issued, company receive cash for their business operation and the investors receive some portion of ownership of the company. This issuance of the stock transaction shows that there is an excess of par value. We have to record a different credit account besides of the Common Stock Account called the paid-in capital if there is a difference between the stock’s par value and the amount given by the investors for the stock. This term does not show that the company gains benefit from the excess of par, but it shows that the investors contribute an additional amount for the investment.

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**Answer:**

United States-led alliances around the world included NATO in Europe, SEATO in Southeast Asia, and CENTO in the Middle East.

**Explanation:**

-The North Atlantic Treaty Organization (NATO) is an intergovernmental military alliance governed by the North Atlantic Treaty, signed on April 4, 1949. The organization constitutes a collective defense system, in which Member States agree to defend any of their members if they are attacked by an external power.

-The Southeast Asian Treaty Organization (SEATO) was a regional defense organization, in force from 1955 to 1977, consisting of Australia, France, New Zealand, Pakistan, the Philippines, Thailand, Great Britain and the United States. It was founded as part of the Collective Defense Treaty of Southeast Asia, in order to protect the region of the USSR and China.

-The CENTO (Central Treaty Organization), also called the Baghdad Pact, was formed in 1955 by Iran, Iraq, Pakistan, the United Kingdom and Turkey.

Some considered the pact as a British attempt to preserve its influence in the Middle East in place of the loss of its empire in India. In 1958 the United States joined the military committee of the alliance. It is considered one of the least profitable alliances of the Cold War.

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