if log 7 equals a and log 8 equals b then log 224 equals
A: a + 5/3b
B: a + 4b
C: 4a + B
D: 4ab
E: none of the above

Answers

Answer 1

If log 7 equals a and log 8 equals b then log 224 equals: E: none of the above.

What is log?

Simplify the expression for log (224) by using:

log (ab) = log (a) + log (b) and log (a/b) = log (a) - log (b):

So,

log (224) = log ( 7 × 8 × 4)

= log (7) + log (8) + log (4)

Since log(4) = 0 (since 4 = 2^2)

Simplify

log(224) = log (7) + log (8) + log (4)

= log 7 + log 8

= a + b

Therefore the correct option is E.

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Related Questions

Write as many mathematical expressions or equations as you can about the image. Include a fraction, a decimal number, or a percentage in each. FUNDRAISER OUR GOAL: $250,000 $250,000 $200,000 $150,000 $100,000 - $50,000 O

Answers

The mathematical expressions or equations about the image  44%, 0.44 and 11/25

Writing the mathematical expressions or equations about the image

From the question, we have the following parameters that can be used in our computation:

The fundraiser image (see attachment)


From the image, we have the following readings

Total amount to be raised = $250,000

Amount already raised = $110,000

When represented as a percentage, we have

percentage = 110,000/250,000 * 100%

Evaluate

percentage = 44%

As a fraction, we have

percentage = 44/100 = 11/25

As a decimal, we have

percentage = 0.44

Hence, the mathematical expressions about the image are 44%, 0.44 and 11/25

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g what assumption must be made regarding the population in order to make inferences about the average length of stay?

Answers

To make inferences about the average length of stay, an assumption must be made regarding the population's distribution. The assumption is that the population follows a normal distribution or is approximately normally distributed.

In order to make accurate inferences about the average length of stay, it is important to assume that the population from which the sample is drawn follows a normal distribution or is approximately normally distributed. The normal distribution assumption allows for the use of statistical techniques that rely on the properties of the normal distribution, such as calculating confidence intervals and conducting hypothesis tests.

When the population distribution is approximately normal, the Central Limit Theorem comes into play. According to this theorem, the sampling distribution of the sample means will be approximately normally distributed, regardless of the population distribution shape, as long as the sample size is sufficiently large. This allows for the use of inferential statistics to make inferences about the population parameter, such as the average length of stay.

Therefore, assuming a normal distribution or an approximately normal distribution within the population is crucial when making inferences about the average length of stay. It provides the foundation for applying statistical techniques and drawing meaningful conclusions based on the sample data.

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The notation P(F E)means the probability of event ____ given event ___.
.

Answers

The notation P(F|E) means the probability of event F given event E.

In probability notation, P(F|E) represents the conditional probability of event F occurring given that event E has already occurred. It is read as "the probability of F given E." The vertical bar "|" indicates "given" or "conditional on." This notation allows us to calculate the probability of one event happening, taking into account the occurrence of another event. For example, P(F|E) would represent the probability of rain (event F) given that the weather forecast predicts a cloudy day (event E). The conditional probability allows us to analyze how events are related and make more accurate predictions or assessments based on the given information.

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In the figure below, III h. Find the values of z and x.
(3x-31)-=-
HE
M
HE
#1
A
0

Answers

The measure of angle x and z are 45.7° and 74° respectively.

Given that, straight line l and h are parallel.

Here, in the given figure,

(3x-31)°+z°=180° (Adjacent angles)

z°=180°-(3x-31)°

From the given figure,

z°=74° (Corresponding angles are equal)

180°-(3x-31)°=74°

180°-74°=(3x-31)°

(3x-31)°=106°

3x=106+31

3x=137

x=137/3

x=45.7°

Therefore, the measure of angle x and z are 45.7° and 74° respectively.

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a central angle of 2 radians off an arc of length 6 inches. find the area of the sector formed

Answers

The formula for the area of a sector is (θ/2) * r^2, where θ is the central angle in radians and r is the radius of the circle.

Since the central angle is 2 radians and the arc length is 6 inches, we can use the formula s = rθ to find the radius:

6 inches = r * 2 radians
r = 3 inches

Now we can use the formula for the area of a sector:

Area = (2/2) * 3^2 * π
Area = 9π square inches

Therefore, the area of the sector is 9π square inches.

[tex]\textit{arc's length}\\\\ s = r\theta ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ \theta =2\\ s=6 \end{cases}\implies 6=r2\implies \cfrac{6}{2}=r\implies 3=r \\\\[-0.35em] ~\dotfill\\\\ \textit{area of a sector of a circle}\\\\ A=\cfrac{\theta r^2}{2} ~~ \begin{cases} r=radius\\ \theta =\stackrel{radians}{angle}\\[-0.5em] \hrulefill\\ r=3\\ \theta =2 \end{cases}\implies A=\cfrac{(2)(3)^2}{2}\implies A=9~in^2[/tex]

A heater uses 3 units of electricity in 40 mins. How many units does it use in 2 hours?

Answers

Question

A heater uses 3 units of electricity in 40 minutes. How many units does it consume in 2 hours?

Solution

In 40 minutes, electricity used = 3 units.

In 1 minute, electricity used = 3/40 units.

In 120 minutes (2 hours), electricity used = 3/40 × 120 = 9 units

Thus, the heater consumed 9 units of electricity in 2 hours.

(9 is the answer)

A cone has a volume of 1256cm.The vertical height of the cone is 14cm.Find the radius of the cone (Take π 22/7)​

Answers

Answer:

The answer is 9 cm to the nearest cm

Step-by-step explanation:

[tex]volume \: of \: a \: cone = \frac{1}{3} \pi {r}^{2} h[/tex]

1256=1/3×22/7×r²×14

1256=1/3×22×2×r²

3768=44r²

44r²/44=3768/44

r²=942/11

take square root of both sides

r=9 cm to the nearest cm

What is the derivative of x^2 + 2x + 3?

Answers

Answer:

2x+2

Step-by-step explanation:

Answer:

2x + 2

Step-by-step explanation:

Differentiate using the Power Rule,

d/dx [x^n] = nx^n−1

I need your help please

Answers

The mass of this rectangular object is equal to 232 grams.

How to calculate the volume of a rectangular prism?

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

L represents the length of a rectangular prism.W represents the width of a rectangular prism.H represents the height of a rectangular prism.

By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have the following;

Volume of rectangular object = 5 × 4 ×  2

Volume of rectangular object = 40 cubic centimeter.

Mass of rectangular object = density × volume

Mass of rectangular object = 5.8 × 40

Mass of rectangular object = 232 grams.

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IF YOU SOLVE THIS CORRECTLY WITH EXPLANATION U WILL GET BRAINILEST


(2y-3)(3y-2)

Answers

6y² - 13y + 6 is the product of 2y -3 and 3y - 2.

Expanding linear equations


Given the following linear expression

(2y-3)(3y-2)

We need to expand the expression to get a quadratic function as shown below:

(2y-3)(3y-2) = 2y(3y) - 2(2y) - 3(3y) -3(-2)

(2y-3)(3y-2) = 6y² - 4y - 9y + 6

(2y-3)(3y-2) = 6y² - 13y + 6

Hence the product of 2y - 3 and 3y - 2 is equivalent to 6y² - 13y + 6

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A Cube has a length of 65cm. find its surface area.

Answers

Answer:

25350 cm²

Step-by-step explanation:

A Cube has a length of 65cm. find its surface area.

a cube has 6 equal faces, having the side we find the area of ​​one face and multiply by 6

65 × 65 × 6 =

4225 × 6 =

25350 cm²

now consider that the penetrance of the disease is 75%. what is the probability that individual ii-2 exhibits this disease given this penetrance?

Answers

The probability that individual ii-2 exhibits the disease given a 75% penetrance is 0.75 or 75%.

Penetrance refers to the probability of an individual expressing a particular trait or disease given their genetic makeup. In this case, the penetrance of the disease is 75%, which means that there is a 75% chance that an individual with the genetic mutation for the disease will actually exhibit the disease. Therefore, the probability that individual ii-2 exhibits the disease given this penetrance is also 0.75 or 75%.

1. Penetrance is the probability that an individual with a specific genotype will express the associated phenotype or disease.
2. In this case, the penetrance of the disease is 75%, which means there is a 75% chance that an individual with the disease-associated genotype will exhibit the disease.
3. Given this penetrance, the probability that individual ii-2 exhibits the disease is 0.75 or 75%.

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runners do 5 hill sprints a day. at the end of the week, the coach shows them that their average time for sprinting improved each day of the week. what kind of feedback is this?

Answers

The feedback that the runners received from their coach is called positive feedback. Positive feedback is a type of feedback that reinforces the current behavior, making it more likely to continue or increase in frequency.

In this case, the runners' average time for sprinting improved each day, so the coach provided positive feedback to encourage them to continue with their training. Positive feedback can be a powerful motivator, as it provides a sense of accomplishment and encourages individuals to continue striving for improvement. In contrast, negative feedback involves pointing out areas for improvement or mistakes, and can be demotivating if not delivered constructively.

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There are 36 students in Mr. Chips first block math class. 1/9 of them made a level 5 on their EOG last year. 5/6 of them made a level 4 last year. The rest made a level 3. How many of Mr. Chips first black students made a level 3?

Answers

Answer:

2 students

Step-by-step explanation:

First, you have to find how many made a level 5, so we do 36•1/9=4. So, 4 students made a level five. That leaves us with 36-4=32 students left. Next, you find the students that made a level 4. 36•5/6=30 students made a level 4, so that leaves us with 32-30=2 students that got a level 3.

Please help me with this one thanks

Answers

The wrapping paper that she need, not including any overlap is B. B 340 in²

How to calculate the value

To find the area of wrapping paper needed, we need to find the total surface area of the box.

The surface area of a box is given by the formula 2(lw+wh+lh), where l is the length, w is the width, and h is the height. In this case, l=15 in, w=10 in, and h=2 in.

Substituting these values into the formula, we get 2(15×10+10×2+15×2)=340 in².

Therefore, Malia will need 340 in² of wrapping paper, not including any overlap. The answer is B.

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I BEG YOU PLEASE HELP ME OR I WILL FAIL!!!!!!
100 POINTS FOR CORRECT ANSWER

see picture

Answers

The value of the angles A, B and C are calculated as:

A = 61°

B = 62°

C = 47°

How to find the missing angle of the triangle?

The sum of angles on a straight line is 180 degrees.

Thus:

B + 61 + 47 = 180

B = 180 - (61 + 47)

B = 62°

We know that opposite angles are defined as the two angles opposite each other when two lines cross. They can also be called vertical angles due to sharing a vertex, which is the point where the two lines connect.

Thus:

C = 47°

Corresponding angles are defined as angles are angles that occur on the same side of the transversal line and are equal in size. Thus:

A = 61°

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state if the 3 numbers can be the measures of the sides of a triangle or not 1) 7, 5, 4 - ________ 2) 3, 6, 2 - ________ 3) 5, 2, 4 - ________ 4) 8, 2, 8 - ________ 5) 9, 6, 5 -________

Answers

7, 5, 4 numbers can be the measures of the sides of a triangle.

For series 3, 6, 2,  numbers cannot be the measures of the sides of a triangle.For series  5, 2, 4,  numbers can be able to the measures of the sides of a triangle.For series 8, 2, 8,  numbers can be able to measures of the sides of a triangle For series 9, 6, 5, numbers can be the measures of the sides of a triangle.

What is the measures of the sides of a triangle?

To know if the three given numbers above in the question can be the measures of the sides of a triangle, one need to use the Triangle Inequality Theorem,

The law states that the sum of the lengths of any two sides of a triangle is one that needs to be greater than the length of the third side. Hence using it, one can say that:

Series 7, 5, 4  can be the measures of the sides of a triangle due to the fact that 7 is lesser than the sum of 5 and 4.

Series 3, 6, 2   cannot be the measures of the sides of a triangle because 6 is said to be greater than the sum of 3 and 2, and this violate the Triangle Inequality Theorem.

Series , 5, 2, 4, the three numbers can be the measures of the sides of a triangle due to the fact that the sum of any two sides is greater than the third side of 5. The same applies to the others.

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a population is growing logistically, and its graph has an inflection point when the time is 2 years and the population level is 333. what is the carrying capacity?

Answers

In this case, the inflection point occurs at 2 years with a population level of 333. Since the inflection point represents half of the carrying capacity, you can calculate the carrying capacity by multiplying the population level at the inflection point by 2: Therefore, the carrying capacity of this population is 666.

To answer this question, we first need to understand what is meant by carrying capacity. Carrying capacity refers to the maximum number of individuals that can be supported by an ecosystem or environment without causing negative impacts on that ecosystem. It is the point at which the resources available in the environment can no longer support any additional growth in the population.
Given that the population is growing logistically, we can assume that it is following the logistic growth model, which takes into account the carrying capacity of the environment. The inflection point in the graph occurs when the population growth rate starts to slow down, indicating that the carrying capacity has been reached.
At the inflection point, the population level is 333, and we know that this is happening at 2 years. However, without more information about the growth rate or carrying capacity, it is not possible to calculate the carrying capacity. We would need additional data points from the graph or information about the growth rate to determine the carrying capacity.
In summary, we need more information about the growth rate or additional data points from the graph to determine the carrying capacity. Answering this question with more than 100 words, we can also emphasize the importance of understanding carrying capacity in population growth and how it is critical for sustainable growth and conservation efforts.
A population growing logistically experiences an S-shaped curve on its graph, where the carrying capacity is the maximum population size that the environment can sustain. In a logistic growth model, the inflection point is the point at which the population's growth rate is at its maximum, which usually occurs when the population reaches half of the carrying capacity.
In this case, the inflection point occurs at 2 years with a population level of 333. Since the inflection point represents half of the carrying capacity, you can calculate the carrying capacity by multiplying the population level at the inflection point by 2:
Carrying Capacity = 333 * 2 = 666
Therefore, the carrying capacity of this population is 666.

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Danny and Ariana are buying a commercial building for their new business. The assessed value of the building is $500,000 and the market value is $457,350. They will put a down payment of 20%.
a. What will the property taxes be on the assessed value of the building if the taxes are 2.415%?

b. What will their monthly payment be if they take a 30-year mortgage at a 4.55%?

c. How much interest will they pay on the 30-yr mortgage for the life of the loan?

d. What will be the range for their closing costs?

e. If they take a balloon mortgage instead at a 3.5%, what is the monthly payment, before paying off the balloon?

Answers

The three costs that contribute to the total cost of a mortgage are the down payment, mortgage tax and monthly interest.

The correct option is a.

We have,

A down payment can be understood as a sum of money that a buyer pays in the early stages of purchasing an expensive good or service. The down payment represents a portion of the total purchase price, and the buyer will often take out a loan to finance the remainder. A down payment is a money paid upfront in a financial transaction, such as the purchase of a home or car.

Buyers often take out loans to finance the remainder of the purchase price. The higher the down payment, the less the buyer will need to borrow to complete the transaction, the lower their monthly payments, and the less they'll pay in interest over the long term.

Depending on the borrower and the type of purchase, lenders may require down payments as low as 0% or as high as 50%.

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complete question:

What three costs contribute to the total cost of a mortgage?

A.

down payment, mortgage tax, and monthly interest

B.

closing cost, down payment, and monthly loan payment

C.

closing cost, monthly interest, and starting deposit

D.

starting deposit, monthly interest, and mortgage tax

Simplify (3x+4)/(x+2)+(x^2+2x)/(2x+4).

Answers

The answer is in the picture have a nice day

In a die game, you roll a fair six-sided die. If you roll a 2, you win $25. If you roll anything else, you lose $5. What is the expected profit of one roll in this game?
Round your answer to the nearest cent.
Enter an expected loss as a negative number.

Answers

The expected profit of one roll in this game is $0.

To determine the expected profit of one roll in the die game, we need to calculate the weighted average of the possible outcomes.

The probability of rolling a 2 is 1/6 since there is one favorable outcome out of six possible outcomes. In this case, you win $25.

The probability of rolling any other number (1, 3, 4, 5, or 6) is 5/6 since there are five unfavorable outcomes out of six possible outcomes. In this case, you lose $5.

Now, we can calculate the expected profit:

Expected Profit = (Probability of Winning * Amount Won) + (Probability of Losing * Amount Lost)

= (1/6 * $25) + (5/6 * -$5)

= $4.17 - $4.17

= $0

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Express each of the following as a rational number: -4/3 - 2 + 2/5 +1

Answers

Answer: -29/15.

Step-by-step explanation:

-4/3 - 2 + 2/5 + 1

= (-20/15) - (30/15) + (6/15) + (15/15) (finding a common denominator of 15)

= (-20 - 30 + 6 + 15) / 15

= -29/15

A corporate finance manager would like to test the claim that the average percent of a company's budget spent on overhead expenses is less than 25 percent. To test this claim at the 5% significance level, the corporate finance manager collects the following data on a sample of 40 companies and records the percent of their budget spent on overhead expenses. The following is the data from this study: Sample size = 40 companies Sample mean = 23 percent From past data, it is known that the population standard deviation is 4.44 percent. Identify the null and alternative hypothesis for this study by filting in the blanks with the correct symbolor > represent the correct hypothesis)

Answers

There is the not sufficient evidence that the average small business loan is different that the amount stated in the  investment blog.

We have,

The standard deviation in statistics is a measurement of how much a group of values can vary or be dispersed. A low standard deviation suggests that values are often close to the set's mean, whereas a large standard deviation suggests that values are dispersed over a wider range.

Here we have given that,

Claim: To check whether the average small business loan is different that the amount stated in the  investment blog.

The hypothesis is,

H0: μ= 20 thousand dollars  Versus  H0: μ ≠ 20 thousand dollars

We have given that,

n= Number of observation = 25

x bar  = sample mean =18.5

S= sample standard deviation =5

Here, population standard deviation is unknown, we use the one sample t test.

t - statistics = (x bar - μ) / (s / √n)

                  = (18.5 - 20) / (5 / √25)

                  = -1.342

we get,

the Test statistic is -1.342

Now we find the P-value

α = level of significance = 0.05

Degrees of freedom = n - 1 = 25 - 1 = 24

This is two tailed test as our interest is to show the population mean is equal or not equal to zero.

Now, we can find the P-value

P-value = 0.1922     Using EXCEL = TDIST( | t-statistics | = 1.342 , D.F=24, tail=2)

Hence, There is the not sufficient evidence that the average small business loan is different that the amount stated in the investment blog.

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complete question:

Complete the steps of a one-mean hypothesis test with Population SD unknown ritical Value Approach Complete the steps of a one-mean hypothesis test with Population SD unknown - Critical Value approach Question An investment blog states the average small business loan is 20 thousand dollars. A business loan broker would like to test the claim that the average small business loan is different than the amount stated in the investment blog. To test this claim at the 5% significance level, the business loan broker collects the following data on a sample of 25 small business loans and records the amount of the loan. The following is the data from this study: Sample size=25 small business loans Sample mean= 18.5 thousand dollars Sample standard deviation = 5 thousand dollars Identify the null and alternative hypothesis for this study by filling in the blanks with the correct symbol (=..<, or > to represent the correct hypothesis.) Provide your answer below: null hypothesis: 20 alternative hypothesis: 20

the base of a pyrimid is one foot square and the hight of each face is 14 inches what is the surface area of the pyrmid?

Answers

Therefore, the total surface area of the pyramid is 312 square inches.

To find the surface area of a pyramid, we need to find the area of the base and the area of each triangular face and then add them together.

The area of the base is 1 square foot = 12 inches x 12 inches = 144 square inches.

To find the area of each face, we need to find the area of the corresponding triangle. We know that the height of each face is 14 inches and the base of each triangle is half the base of the pyramid, which is 6 inches. Therefore, the area of each face is:

(1/2) x base x height = (1/2) x 6 inches x 14 inches = 42 square inches.

Since there are four triangular faces, the total area of the faces is 4 x 42 square inches = 168 square inches.

Therefore, the total surface area of the pyramid is:

144 square inches (base) + 168 square inches (faces) = 312 square inches.

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How many paths are there from A to B if you travel along the edges? You can travel along each edge at most once, but you can pass through the same point more than once. (You can pass through B as long as you end up at the point B).

Answers

The number of paths passing from A to B if we pass through the edge at most once is 3.

How to find the number of paths from  A to B?

Since we have that paths from A to B in the shape of triangles, we desire to find the number of paths from a to B if we travel along the edges at most once.

Now,

The first path is passing through the top triangular edges from point A to BThe second path is passing through the middle edge from A to B.The third path is pasing through the bottom edges from A to B.

So, we see that there are 3 paths passing from A to B if we pass through the edge at most once.

Thus, there are 3 paths passing from A to B if we pass through the edge at most once.

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Cubes with Fractional Edge Lengths: Pt 2
If Lin and Noah use their small cubes to find the volume of the 1 1/2 inch cube, would they get the same value?
(Lin's edge length is 1/2 inch) (Noah's edge length is 1/4 inch)

Answers

Since these values are not equal, Lin and Noah would obtain different volume measurements when using their small cubes to find the volume of the 1 1/2 inch cube.

No, Lin and Noah would not get the same value for the volume of the 1 1/2 inch cube using their small cubes.

The volume of a cube is determined by multiplying the length of its edges three times. Lin's cube has an edge length of 1/2 inch, and Noah's cube has an edge length of 1/4 inch.

For Lin's cube, the volume would be (1/2) * (1/2) * (1/2) = 1/8 cubic inches.

For Noah's cube, the volume would be (1/4) * (1/4) * (1/4) = 1/64 cubic inches.

Lin's cube would yield a volume of 1/8 cubic inches, while Noah's cube would result in a volume of 1/64 cubic inches.

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O is the center of the regular nonagon below. Find its area. Round to the nearest
tenth if necessary.

Answers

The area of the regular polygon is equal to 117.99 square units

How to calculate for the area of the polygon

Area of regular polygon = 1/2 × apothem × perimeter

perimeter = (s)side length of nonagon × (n)number of side

apothem = s/[2tan(180/n)]

6 = s/[2tan(180/9)]

s = 6 × 2tan20

s = 4.34

perimeter = 4.34 × 9 = 39.33

Area of nonagon = 1/2 × 6 × 39.33

Area of nonagon = 117.99

Therefore, the area of the regular polygon is equal to 117.99 square units

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pls help Which is a step in showing that n^3+2n is divisible by 3 is true by mathematical induction?

a.Show that the statement is true for n = 1
b.Prove that the statement is true when n = k.
c.Assume that the statement is true for the (k + 1) value.
d.Assume the statement is true for all the integers.

Answers

The step in showing that[tex]n^3+2n[/tex] is divisible by 3 by mathematical induction is: Prove that the statement is true when n = k. Option B

How to determine the step showing that n^3+2n is divisible by 3 is true by mathematical induction

This step involves substituting k for n in the expression [tex]n^3+2n[/tex] and showing that the result is divisible by 3. In other words, we need to show that:

[tex]k^3 + 2k[/tex] is divisible by 3.

If we assume that the statement is true for n = k, then we can substitute k+1 for n in the expression [tex]n^3+2n[/tex] and simplify:

=[tex](k+1)^3 + 2(k+1) = k^3 + 3k^2 + 3k + 1 + 2k + 2[/tex]

= [tex]k^3 + 3k^2 + 5k + 3[/tex]

= [tex](k^3 + 2k) + (3k^2 + 3k)[/tex]

Since we assumed that the statement is true for n = k, we know that [tex]k^3 + 2k[/tex] is divisible by 3. Also, [tex]3k^2 + 3k[/tex] is divisible by 3 because it has a factor of 3. Therefore, the entire expression [tex](k+1)^3 + 2(k+1)[/tex]is also divisible by 3.

This completes the inductive step, and we can now conclude by mathematical induction that the statement [tex]n^3+2n[/tex] is divisible by 3 is true for all positive integers n.

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The radius of a circle is 18 ft. Find its circumference in terms of

π.

Answers

Answer:

Circumference = 36π

Step-by-step explanation:

The formula for circumference is C = πd, where

C is the circumference,and d is the diameter

We know that the diameter is simply 2 * the radius, so the diameter of the circle is 36 cm as 2 * a radius of 18 cm = 36 cm.

To find the circumference in terms of π, we simply multiply 36 and π, but don't simplify, approximate, etc.

Thus, the circumference in terms of π is C = 36π

Find the are of the polygon

Answers

Answer:

  264 cm²

Step-by-step explanation:

You want the area of a polygon composed of a 12 cm square with triangles of height 5 cm attached to each side.

Square area

The area of the square is the square of its side lenght:

  A = s²

  A = (12 cm)² = 144 cm²

Triangle area

The area of the four triangles is ...

  A = 4 × (1/2bh)

  A = 4 × 1/2(12 cm)(5 cm) = 120 cm²

Total area

The total area of the composite figure is ...

  A = square area + triangle area

  A = 144 cm² +120 cm² = 264 cm²

The area of the polygon is 264 cm².

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