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A firefighter stood on the middle rung of a ladder, spraying water on a fire. the smoke lessened, so she moved up 3 rungs. it got too hot, so she backed down 5 rungs. later, she went up 7 rungs and stayed until the fire was out. then, she climbed the remaining 4 rungs and went into the building. how many rungs does the ladder have?

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# Tag: remaining

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**D. 0.2 M**The concentration of a solution is basically the ratio of the solute present to the solvent in the solution. This is an intrinsic property, independent of the amount of solution that is present. A similar example is that of density. No matter the size of a sample, the density and concentration of that sample remain constant.

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**1.** The answer is** “C”.**

__ “Identical twins” __who have been raised apart are typically more similar in intelligence level than biological siblings raised together because they have been born with the same genetic code.

Identical twins originate from a single fertilized egg that parts into two. Before it parts, it is either male or female. After it parts, there are either two guys or two females. The two sections of the fertilized egg embed in the uterus and every create one of the twins.

Identical twins have the equivalent hereditary source. No immediate reason for monozygotic twinning has been resolved; it isn’t innate. Monozygotic twins speak to around 33% all things considered. They may look strikingly comparative, and it might be hard to reveal to them separated.

**2.** The answer is** “A”.**

Lawrence Kohlberg felt that one of the only ways individuals will accomplish the objectives in each of his six stages was to participate in __ “consensus democracy” __in small group settings.

Lawrence Kohlberg felt that the best way to support development through these stages was by discourse of good problems and by investment in consensus democracy inside small groups. Consensus democracy was rule by understanding of the gathering, not larger part rule. This would invigorate and widen the reasoning of youngsters and grown-ups, enabling them to advance starting with one phase then onto the next.

**3.** The answer is** “D. showing a learner how to correct common mistakes”.**

The term scaffolding alludes to a procedure in which instructors display or exhibit how to take care of an issue, and afterward venture back, offering support as required. Analyst and instructional architect Jerome Bruner first utilized the term ‘scaffolding’ in this setting, harking back to the 1960s. The hypothesis is that when understudies are given the help they require while discovering some new information, they stand a superior possibility of utilizing that learning freely. Bruner suggests positive association and three methods of portrayal amid educating: activities, pictures, and dialect.

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The half-life of sodium-22 is 2.6 years. A sample contains 800 mg of this isotope. Which expression represents the mass.od sodium remaining after h half-lives?

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Since we do not know where the angle of 23 degrees is located, then we can find the remaining side using the Pythagorean theorem. This can be done because we know that we have a triangle with a right angle.

We have then:

From here, we clear the value of x.

We have then:

Then, the area of the triangle is given by:

Where,

b: base of the triangle

h: height of the triangle

Substituting values:

Note: Maybe the height of the triangle is 27.6 instead of 11.8. This will depend on where the angle of 23.8 is located.

But for the moment of looking for the area of the triangle, this is not relevant because the product of the base for the height is the same.

** Answer:**

** The approximate area of the triangle is:**

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I’m stuck on this question, PLZ HELP. –Mama Mia restaurant used 1/2 of their mozzarella cheese making pizza and the remaining 64 ounces making pasta. How many pounds of mozzarella cheese did Mama Mia start with?

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how would you solve for the length of the remaining side?

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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 Contribution Margin per unit (CM) can be calculated

from the difference of Selling Price per unit (SP) and Total Expenses per unit

(TE).

First, let’s calculate the value of SP:

SP = Sales / Units sold

SP = $1,043,400 / 22,200 units sold

SP = $47

Second, calculate all expenses:

Direct materials per unit = $234,948 / 27,970 units

manufactured = $8.4

Direct labor per unit = $131,459 / 27,970 units

manufactured = $4.7

Variable manufacturing overhead per unit = $240,542 / 27,970

units manufactured = $8.6

Variable selling expenses per unit = $113,220 / 22,200

units sold = $5.1

TE = $26.8

Therefore the CM is:

CM = SP – TE

CM = $47 – $26.8

**CM = $20.2 per unit**

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The Contribution Margin per unit (CM) can be calculated

from the difference of Selling Price per unit (SP) and Total Expenses per unit

(TE).

First, let’s calculate the value of SP:

SP = Sales / Units sold

SP = $1,043,400 / 22,200 units sold

SP = $47

Second, calculate all expenses:

Direct materials per unit = $234,948 / 27,970 units

manufactured = $8.4

Direct labor per unit = $131,459 / 27,970 units

manufactured = $4.7

Variable manufacturing overhead per unit = $240,542 / 27,970

units manufactured = $8.6

Variable selling expenses per unit = $113,220 / 22,200

units sold = $5.1

TE = $26.8

Therefore the CM is:

CM = SP – TE

CM = $47 – $26.8

**CM = $20.2 per unit**

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A truck with a cost of $82,000 has an estimated residual value of $16,000, has an estimated useful life of 12 years, and is depreciated by the straight-line method. a. determine the amount of the annual depreciation. $ b. determine the book value at the end of the seventh year of use. $ c. assuming that at the start of the eighth year the remaining life is estimated to be six years and the residual value is estimated to be $12,000, determine the depreciation expense for each of the remaining six years. $

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There are two

basic subjects for security design principle the simplicity – KISS which makes

design and connections easy and easy to verify its safety and the other one is

restriction which is to lessen the power of entities. There are 8 security

design principles listed are the following:

·

The least

privilege principle which the entity should be set only those privilege

needed to finish a task. The temporary elevation of opportunity should be give

up immediately and append permission only for logging procedure.

·

The fail

safe defaults principle which unless a subject is given clear access to an

object and it should be deprived of access to the object. The default access is

none and restriction privileges at the time of creation.

·

The economy

of mechanism principle which security mechanism must be as simple as

possible and testing and verification is easy because expectations are less and

interface to other modules is implicit.

·

The complete

mediation principle which all right of entry to objects should be tested to

ensure they are allowed.

·

The open

design principle which security of device should not rest on confidentiality

of its execution.

·

The separation

of privilege principle which system should not grant authorization based on

single circumstance.

·

The least

common mechanism principle which devices used to factual of entry resources

should not be communal.

·

The psychological

acceptability principle which security device should not make the source hard

to access and distinguishes the most significant part in computer system which

is the human.

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**Answer:**** The percent yield of NO is 71.43 %.**

**Explanation:**

**To calculate the number of moles, we use the equation:**

**…..(1)**

Given mass of ammonia = 9.5 g

Molar mass of ammonia = 17 g/mol

**Putting values in equation 1, we get:**

**The given chemical equation follows:**

**By Stoichiometry of the reaction:**

4 moles of ammonia produces 4 moles of NO

So, 0.56 moles of ammonia will produce of NO

**Now, calculating the mass of NO from equation 1, we get:**

Molar mass of NO = 30 g/mol

Moles of NO = 0.56 moles

**Putting values in equation 1, we get:**

**To calculate the percentage yield of NO, we use the equation:**

Experimental yield of NO = 12.0 g

Theoretical yield of NO = 16.8 g

**Putting values in above equation, we get:**

**Hence, the percent yield of NO is 71.43 %.**

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**Answer: ****The empirical formula of the compound is **

**Explanation:**

To know the empirical formula of the compound, **we will follow some steps:**

**Step 1:**** Converting all these percentages into mass.**

We take the total mass of the compound to be 100 grams, so, the percentages given for each element becomes its mass.

Mass of Sulfur =

Mass of Oxygen =

Molar mass of Sulfur = 32 g/mol

Molar mass of Oxygen = 16 g/mol

**Step 2:**** Converting the given masses into their respective moles.**

Moles of Sulfur =

Moles of Oxygen =

**Step 3:**** Now, calculating mole ratio, we divide each number of moles by the smallest number of moles calculated.**

For Sulfur =

For Oxygen =

The ratio of S : O = 1 : 2

**Step 4:**** Writing the mole ratio of the element as the subscripts in molecular formula.**

Empirical formula of the compound :

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2. a b c

3. a b c

4. a b c

5. a b c

then she eliminated 1 choice in 1 and 2, say as follows

1. b c

2. a b

3. a b c

4. a b c

5. a b c

Probability of answering correctly the first 2, and at least 2 or the remaining 3 is

P(answering 1,2 and exactly 2 of 3.4.or 5.)+P(answering 1,2 and also 3,4,5 )

P(answering 1,2 and exactly 2 of 3.4.or 5.)=

P(1,2,3,4 correct, 5 wrong)+P(1,2,3,5 correct, 4 wrong)+P(1,2,4,5 correct, 3 wrong)

also P(1,2,3,4 c, 5w)=P(1,2,3,5 c 4w)=P(1,2,4,5 c 3w )

so

P(answering 1,2 and exactly 2 of 3.4.or 5.)=3*P(1,2,3,4)=3*1/2*1/2*1/3*1/3*2/3=1/4*2/9=2/36=1/18

note: P(1 correct)=1/2

P(2 correct)=1/2

P(3 correct)=1/3

P(4 correct)=1/3

P(5 wrong) = 2/3

P(answering 1,2 and also 3,4,5 )=1/2*1/2*1/3*1/3*1/3=1/108

Ans: P= 1/18+1/108=(6+1)/108=7/108

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Because of this, the designer of this question, did so quite poorly. Now simplistically we could say that the domain would be [0,+oo) and the range [0,+oo), But this would be ignoring all of the above. In reality the domain would be [0, 1/24, 2/24, etc n/24] where n/24 was some real limitation on the amount of flour (and time) that you could possibly have and the range would be [0,1,2,3,…n] where n would be the result of the the limited domain values. (unless we were making fractional cookies :P)

Sorry, I could not resist, I cringe when I see subjective math problems. The range and domain I put is what I would call “reasonable” range and domain. I wonder what the designer of the question thinks is reasonable….

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**Answer:**

$768.98

**Step-by-step explanation:**

Converting $1750 USD to Chilean pesos, we have

1750(496.5) = 868,875 CLP.

Spending 217,513 pesos gives us

868,875 – 217,513 = 651,362

Converting CLP to VEF, we have

651362*0.1283 = 83569.74

Spending 38,422.19 bolivars leaves us with

83,569.74 – 38,422.19 = 45,147.55

Converting VEF to PYG, we have

45147.55(1063.95) = 48,034,735.82

Spending 12,857,441.39 guarani leaves us with

48,034,735.82-12,857,441.39 = 35,177,294.43

Converting these PYG back to USD gives us

35,177,294.43(0.00002186) = 768.98

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**Answer:**

** Next two number would be –5, –10, –20,–40, –80, –160.**

**Step-by-step explanation:**

Given : –5, –10, –20, –40, . . .

To find : Use inductive reasoning to describe the pattern. Then find the next two numbers in the pattern.

Solution : We have given that

–5, –10, –20, –40, . . .

We can see from given pattern

-5 * 2 = – 10.

– 10 * 2 = – 20 .

-20 * 2 = – 40

**So, each number is multiplied by 2 to get next number.**

-40 * 2 = – 80 .

– 80 * 2 = – 160 .

**Therefore, Next two number would be –5, –10, –20,–40, –80, –160.**

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Which law increased immigration quotas and eased most remaining restrictions?

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**Answer: The rainfall increases the mineral content of ocean water.**

**Explanation:**

The minerals in the oceanic water are added by the rainfall through surface runoff. It is a phenomena in which the large volume free flowing water flows over the surface of the soil. This water is not absorbed by the soil instead it takes away along with it all surface materials like chemical fertilizers, soil, sediments, inorganic and organic minerals and deposit them to the water body (ocean, river or others).

Thus this can be said that rainfall increases the mineral content of the ocean water.

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