Mai is filling her fish tank How many gallons of water will be in the fish tank after
3 minutes?

Answer:

7

Step-by-step explanation:

Whenever you shifting an exponential function to the left/right, you're going to generally have the equation: \(y=2^{x-k}\) where k is the shift. So in this case we can think of x+3 as x and k as 10, since the shift is 10. This gives you the equation: (x+3) - 10, which simplifies to x-7, meaning the k value in this case is going go be 7. You can also think of it as already being shifted 3 units to the left, and you shift it 10 units to the right, that means this new function will be shifted 7 units to the right relative to the origin. This means the k=7.

By following these steps, we should be able to solve problems related to the Law of Cosines using Kuta Software Infinite Algebra 2.

Apply the Law of Cosines:
1. Identify the given information: In a triangle, you will be given the length of two sides and the angle between them, or the length of all three sides.
2. Write down the Law of Cosines formula: c² = a² + b² - 2ab * cos(C),

where 'a', 'b', and 'c' are the side lengths of the triangle, and 'C' is the angle opposite to side 'c'.
3. Plug in the given information: Replace the variables in the formula with the given values.

If you know two sides and the angle between them, you can solve for the third side.

If you know all three sides, you can solve for one of the angles.

4. Solve for the missing side or angle: If you're finding a side, perform the arithmetic to calculate the square of the missing side, and then take the square root to find the actual side length.

If you're finding an angle, rearrange the formula to isolate the cosine of the angle, calculate the value, and then use the inverse cosine function (cos⁻¹) to find the angle in degrees or radians.
5. Verify your answer: Check if the resulting triangle's side lengths and angles follow the triangle inequality theorem and sum of angles, respectively.

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In this multiple choice question, we can find the intercepts by substituting the given x values into the linear equation.

If the resulting value of y is 0 after we substitute in one of the possible x-intercepts, then we know it is correct.

\(8x-7y=-56\\8(8)-7y=-56\\64-7y=-56\\-7y=-120\\-7y=-120\\y\neq0\)

\(8x-7y=-56\\8(7)-7y=-56\\56-7y=-56\\-7y=-112\\y\neq0\)

\(8x-7y=-56\\8(-7)-7y=-56\\-56-7y=-56\\-7y=0\\y=0\)

D) x-intercept: -7, y-intercept: 8

The pooled estimate of the variance is 187.650 and the test statistic is -2.32

The dataset is given as:

Regular price 138 124 89 112 116 123 98

Reduced price 124 134 154 135 118 126 133 132

Let the regular price be dataset 1 and the reduced price be dataset 2.

So, we have:

#1: 138 124 89 112 116 123 98

#2: 124 134 154 135 118 126 133 132

Calculate the sample means and the sample standard deviations using a graphing calculator.

#1

\(\sigma_1 = 16.56\)

\(\bar x_1 = 114.29\)

\(\sigma_1^2 = 274.24\)

#2

\(\sigma_2 = 10.65\)

\(\bar x_2 = 132\)

\(\sigma_2^2 = 113.43\)

The pooled estimate of the variance is:

\(\sigma_p^2 = \frac{\sigma_1^2(n_1 - 1) + \sigma_2^2(n_2 - 1)}{(n_1 - 1) + (n_2 - 1)}\)

This gives

\(\sigma_p^2 = \frac{274.24 * (7 - 1) + 113.43 * (8 - 1)}{(7- 1) + (8- 1)}\)

Evaluate the factors

\(\sigma_p^2 = \frac{2439.45}{13}\)

Divide

\(\sigma_p^2 = 187.65\)

Hence, the pooled estimate of the variance is 187.650

This is calculated using:

\(t = \frac{\bar x_1 - \bar x_2}{\sqrt{\sigma_p^2} * \sqrt{\frac{1}{n_1} + \frac{1}{n_2}}}\)

This gives

\(t = \frac{114.29 - 132}{\sqrt{187.650} * \sqrt{\frac{1}{7} + \frac{1}{6}}}\)

This gives

\(t = \frac{-17.71}{\sqrt{187.650} * \sqrt{\frac{13}{42}}}\)

Evaluate the product

\(t = \frac{-17.71}{\sqrt{58.08214}}\)

Evaluate the exponent

\(t = \frac{-17.71}{7.62}\)

Divide

t = -2.32

Hence, the test statistic is -2.32

The critical value at 0.025 significance level is -1.96

-2.32 is less than -1.96

This means that we accept the null hypothesis

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a. The percent of Benny's mom's age to his age is 400%.

b.  Benny's mom's age is 400% of his age.

What is a percent of numbers?

The percent of a number is its fraction that is expressed as percentage. Thus the percentage of a number or part of a number can be determined.

Considering the given question, the years of Benny and that of his mom were given as;

Benny's age = 12 years

His mom's age = 48 years

Thus we can deduce that;

a. The percent of his mom's age to that of Benny's = 48/ 12 * 100%

                                            = 400%

b. Benny's mom's age is 400% of his age.

Therefore, the correct option to be selected is D.

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Given:

1.75 cups per batch

That is

\(\frac{1.75}{1.75}\) Cups per \(\frac{1}{1.75}\) batch = 1 cup per \(\frac{1}{1.75}\) batch

Therefore, 5.25 cups will make

\(5.25 *\frac{1}{1.75}\) Batches = \(\frac{5.25}{1.75}\) = 3 Batches

ANSWER being: 3 batches

In Herrnstein's matching equation, the letters and numbers to the left of the equals sign refer to behaviour.

THE MATCHING LAW

Herrnstein's Experiment Herrnstein (1961) conducted an experiment with pigeons in a room with two response buttons, red and white. Each key was assigned its own VI gain schedule. For example, under one condition, the left button pick was boosted on a VI 135 second schedule, and the right button pick was boosted on a VI 270 second schedule.

After the birds have learned as much as possible about this electoral situation, how do they distribute their responses? We trained them for days and then measured their reactions. As is often the case with VI schedules, birds returned many responses for each reinforcer received. Most interesting, however, is that in this condition, where two-thirds of the reinforcers came from the left button, the birds performed about two-thirds of the responses with the left button. That is, the proportion of left button responses equaled or matched the proportion of reinforcers delivered by the left button. In another condition, two birds received only about 15% of reinforcers from the left key and responded about 15% to that key.

Based on these results, Herrnstein proposed the following general principle for individual behavior when presented with alternative sequences. So, what you think makes sense rather than other options available at that particular moment.

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The dimensions (in m) maximize its volume  is  mathematically given as

\(x=\frac{4\sqrt{3}}{3}\) m   for Lenght and Width

\(h=\frac{2\sqrt{3}}{3}\) m  for height

Generally, the equation for is  mathematically given as

The equation for the area is given as

\(A=x^2+4xh\\\\A=16=4xh\\\\ A=16-x^2\)

\(h=\frac{16-x^2}{4x^2}\)

Volume of box

\(V=x^2 *h\\\\V=x^2*(\frac{16-x^2}{4x^2})\\\\V=4x-x^3\)

Therefore, by differentiating V and making x the subject of the formula we have

\(V'=4-\frac{3x^2}{4}\)

Therefore, with V' =0

\(x^2=16/3\)

\(x^2=\sqrt{16/3}\\\\x=\frac{4}{\sqrt{3}}\\\\\)

\(x=\frac{4\sqrt{3}}{3}\)

Now we will sub the value of x to the h equation

\(\begin{aligned}&h=\frac{16-(\frac{4}{\sqrt{3}})^2}{4 (\frac{4}{\sqrt{3}})} \\\\&h=\frac{16-\frac{16}{3}}{\frac{16}{\sqrt{2}}} \\\\&h=\frac{2 \sqrt{3}}{3} \mathrm{~m}\end{aligned}\)

Now we differntite the derivate of V (V')

\(V''=\frac{-3x}{2}\\V''=\frac{3(\frac{4\sqrt{3}}{3})}{2} \\V''=-2\sqrt{3} < 0 \\\\\) at maximium

In conclusion, the dimensions (in m) maximize its volume.

\(x=\frac{4\sqrt{3}}{3}\)    for Lenght and Width

\(h=\frac{2\sqrt{3}}{3}\)   for height

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Answer: 4 seconds

Step-by-step explanation:

Let's find a.

We are given a right angle which is 90° and an angle marked by "a" next to it. We know that when they are added together, they make a supplementary angle so we can make a equationa and solve.

90 + a = 180

a = 90°

Let's find b.

By looking at the graph, we can tell that the angle "b" and the angle that measures 163° is the same. Thus, b = 163°.

Let's find c.

Using what we did for a, we can solve for c using what we got for b. We can make an equation and solve.

163 + b = 180

c = 27°

Let's find d.

Using the angle that measures 70°, we can solve it like we did with a and c.

70 + d = 180

d = 110°

Let's find e.

Now that we know what d equals, we know that d and e make a supplmentary angle. So, make an equation and solve.

110 + e = 180

e = 70°

Best of Luck!

Answer:

I would estimate $30.52

Step-by-step explanation:

If you subtract his original total from the beginning from what he had spent on shoes, you would get the amount of what he has left.

The executive stayed in London for 10 days, in Paris for 6 days, and in Rome for 4 days.

Let x be the number of days the executive stayed in London, y be the number of days he stayed in Paris, and z be the number of days he stayed in Rome.

We can set up the following equations to represent the given information:

180x + 230y + 160z = 2660 (hotel bills)

110x + 120y + 90z = 1520 (meal expenses)

x = y + z (he spent as many days in London as he did in Paris and Rome combined)

We can rearrange the third equation to get y + z - x = 0 and substitute it into the first two equations to eliminate x:

180x + 230y + 160z = 2660

110x + 120y + 90z = 1520

-180y - 180z + 180x = 0

Adding the first and third equations gives us:

360x + 50y - 20z = 2660

Adding the second and third equations gives us: 290x - 60y - 90z = 1520

We can now solve for x by multiplying the first equation by 3 and the second equation by 5 and subtracting them:

1080x + 150y - 60z = 7980

-1450x + 300y + 450z = 7600

----------------------------------

1630x - 150y - 510z = 380

Solving for x gives us:

x = (150y + 510z + 380) / 1630

Substituting this back into the third equation gives us:

y + z - (150y + 510z + 380) / 1630 = 0

Multiplying by 1630 and rearranging gives us:

1480y + 490z = 380

We can now solve for y by multiplying the first equation by 490 and the second equation by 50 and subtracting them:

490(360x + 50y - 20z) = 490(2660)

50(290x - 60y - 90z) = 50(1520)

---------------------------------------------------

19600x + 24500y - 9800z = 1303400

-14500x + 3000y + 4500z = 76000 --------------------------------------------------

4100x - 21500y - 14300z = 1227400

Solving for y gives us:

y = (4100x + 14300z - 1227400) / 21500

Substituting this back into the equation 1480y + 490z = 380 gives us:

1480(4100x + 14300z - 1227400) / 21500 + 490z = 380

Multiplying by 21500 and rearranging gives us:

606800x + 2054200z - 1817320000 = 0

Solving for z gives us:

z = (1817320000 - 606800x) / 2054200

Substituting this back into the equation x = y + z gives us:

x = y + (1817320000 - 606800x) / 2054200

Multiplying by 2054200 and rearranging gives us: 606800x^2 - 2054200xy - 2054200x + 1817320000y + 3707618640000 = 0

Using the quadratic formula, we can find the value of x:

x = (2054200y + 2054200 ± √[(2054200y + 2054200)^2 - 4(606800)(1817320000y + 3707618640000)]) / (2*606800)

Plugging in the value of y from earlier gives us:

x = (2054200(4100x + 14300z - 1227400) / 21500 + 2054200 ± √[(2054200(4100x + 14300z - 1227400) / 21500 + 2054200)^2 - 4(606800)(1817320000(4100x + 14300z - 1227400) / 21500 + 3707618640000)]) / (2*606800)

Simplifying and solving for x gives us:

x = 10

Substituting this back into the equation x = y + z gives us:

10 = y + z

Substituting this back into the equation 1480y + 490z = 380 gives us:

1480y + 490(10 - y) = 380

Solving for y gives us:

y = 6

Substituting this back into the equation 10 = y + z gives us: 10 = 6 + z

Solving for z gives us:

z = 4

Therefore, the executive stayed in London for 10 days, in Paris for 6 days, and in Rome for 4 days.

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Step-by-step explanation:

f(t)=17(4)+3

=68+3

=71

but if we were to convert hours to seconds

it will be

4x60minx60sec

=14400

17(14400)+3

=244800+3

=244803

244.803KM but the unit was not specified in this question

The corresponding differential element, rewrite the integral in terms of the new variable, integrate with respect to the new variable, replace the new variable with the original variable, and simplify the expression to find the solution.

To perform u-substitution with indefinite integrals, follow these steps:

Identify a suitable substitution: Look for a part of the integrand that resembles the derivative of a function. Choose a variable u to substitute for that part.

Calculate du: Take the derivative of u with respect to the original variable. This will help us express du in terms of the original variable.

Rewrite the integral: Substitute the chosen variable and du in the original integral, replacing the part to be substituted with u and the corresponding differential element du.

Integrate with respect to u: Treat the integral as a new integral with respect to u. Evaluate the integral using the rules of integration.

Replace u with the original variable: Rewrite the result of the integration in terms of the original variable.

Simplify and solve: If necessary, simplify the expression further or perform additional algebraic manipulations to obtain the final result.

Let's illustrate these steps with an example:

Consider the integral ∫(2x + 3)² dx.

Identify a suitable substitution: Let u = 2x + 3.

Calculate du: Take the derivative of u with respect to x: du/dx = 2. Rearrange the equation to solve for du: du = 2 dx.

Rewrite the integral: In terms of u and du, the integral becomes ∫u² (du/2).

Integrate with respect to u: Treat the integral as a new integral with respect to u: (1/2) ∫u² du = (1/2) * (u³/3) + C, where C is the constant of integration.

Replace u with the original variable: Substitute back u = 2x + 3 in the result: (1/2) * ((2x + 3)³/3) + C.

Simplify and solve: Further simplify the expression if necessary to obtain the final result.

In summary, to perform u-substitution with indefinite integrals, identify a suitable substitution, calculate the corresponding differential element, rewrite the integral in terms of the new variable, integrate with respect to the new variable, replace the new variable with the original variable, and simplify the expression to find the solution.

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Answer:

Isn't that 26?

Step-by-step explanation:

Um for work I normally do \(\frac{25}{100}\) times \(\frac{104}{100}\) and then yk simplify. when u multiply those too you get \(\frac{2600}{10000}\) which is 26 ( I think sorrry if I'm wrong)

Step-by-step explanation:

The distance d (in miles) you travel in a car is given by d=55t where t is the time (in hours)

The distance d (in miles) you travel in a car is given by d=20g where g is the number of gallons of gasoline the car uses.

1. Write an equation that relates g & t.

20g=55t20g=55t

2. Solving for g.

20g=55t20g=55t

=> g=\frac{55t}{20}g=

20

55t

Hence, g= 2.75tg=2.75t

3. You travel for six hours. How many gallons of gasoline does the car use

We will use this equation g= 2.75tg=2.75t to solve the question.

Putting t = 6

g= 2.75(6)g=2.75(6)

g = 16.5 gallons

4. How far do you travel?

We can use equation d=55td=55t here

d=55\times6=330d=55×6=330 miles

Answer:

1000xm

Step-by-step explanation:

1 meter = 3.2808 feet, hence. 9.8424 x 10^8 feet in 1 second. 1 foot in x seconds. hence it takes 1 / (9.8424 x 10^8) = 0.10168 x 10^(-8) seconds. ➡️1km = 1000xm⬅️

It will take light approximately 3.0 x 10⁻⁵ seconds to travel one meter.

To find out how long it will take light to travel one meter, we need to convert the given distance of 10,000 km to meters and the time of 3.0 x 10² seconds to seconds.

Given:

Distance traveled by light = 10,000 km

Time taken by light = 3.0 x 10² seconds

To convert km to meters, we know that 1 km = 1 x 10³ m, so:

10,000 km = 10,000 x 1 x 10³ m = 1 x 10⁷ m

Now, we can find the time taken to travel one meter by dividing the total time by the total distance:

Time taken to travel one meter = Total time / Total distance

Time taken to travel one meter = (3.0 x 10² seconds) / (1 x 10⁷ m)

To simplify the expression, we can cancel out one factor of 10 from the numerator and denominator:

Time taken to travel one meter = (3.0 x 10) / (1 x 10⁶ m)

Now, we get the final answer:

Time taken to travel one meter = 3.0 x 10⁻⁵ seconds

So, it will take light approximately 3.0 x 10⁻⁵ seconds to travel one meter.

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Solution

Step 1

Permutations

Permutation means total number of ways in which we can arrange elements in The combination order combination.

Combinations

The combination means a total number of ways in which we can select some elements from a given set of elements.

Permutations are orderings, while combinations are choices.

Step 2

Combination

Step 3

n = 25

r = 4

Final answer

Combination

n = 25

r = 5

12650 ways

Answer:

He paid Rs 1,850 to buy the watch

Profit = Rs 185

Step-by-step explanation:

Cost price = x

Profit = 10% of x

Selling price = Rs 2035

Profit = Selling price - cost price

10% of x = 2035 - x

0.1x = 2035 - x

0.1x + x = 2035

1.1x = 2035

x = 2035 / 1.1

x = 1,850

Cost price = x = Rs 1,850

Profit = 10% of x

= 10% of 1,850

= 0.1 × 1850

= 185

Profit = Rs 185

Edna should leave at 2:07 PM in order to arrive at Jake's party by 2:30 PM

To determine the time Edna should leave, we need to subtract the travel time from the desired arrival time.

If Edna needs to be at Jake's party at 2:30 PM and it takes her 23 minutes to drive there, she should leave 23 minutes before 2:30 PM.

To calculate the departure time, we subtract 23 minutes from 2:30 PM:

2:30 PM - 23 minutes = 2:07 PM

Therefore, Edna should leave at 2:07 PM in order to arrive at Jake's party by 2:30 PM

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Answer:

399.9

Step-by-step explanation:

Answer:

99.975

Step-by-step explanation:

199.95=100%

99.975

Answer:

Step-by-step explanation:

1.  4x = angle 4

x = angle 1

Angle 1 + angle 4 = 180

4x + x = 180

5x = 180

2. 55 = angle 2

angle 1 = 68

angle 3 = 55 + 68 = 123 = 180 - 123 = 57

Angle 4 = 57

Hope this helped,

kavitha

Answer: b

Step-by-step explanation:

Answer:B

Step-by-step explanation:

The z score associated with the highest 10% is closest to: option (c) 1.28

-To find the z score associated with the highest 10%, first determine the percentage that corresponds to the lower 90%, since the z score table typically represents the area to the left of the z score.

- Look up the 0.90 (90%) in a standard normal distribution  (z score) table, which will give you the corresponding z score.

-The z score closest to 0.90 in the table is 1.28, which corresponds to the highest 10% of values.

Therefore, the z score associated with the highest 10% is closest to 1.28.

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Using probabilities P(A₁) = 0.40 , P(A₂) = 0.60, P(B|A₁) = 0.20, P(B|A₂) = 0.05,

a) No, A₁ , A₂ are not mutually exclusive because , their intersection probability is not a zero.

b) P(A₁∩ B) is 0.08 , P(A₂ ∩ B) is 0.03

c) P(B) = 0.09

d) Using Bayes' theorem P(A₁|B) is 0.89 , P(A₂|B) is 0.33 .

a. A₁ and A₂ are not mutually exclusive, as their intersection probability is non-zero (given as 0 in the problem statement).

b. We can compute P(A₁∩ B) and P(A₂∩ B) using the formula for conditional probability:

P(A₁∩ B) = P(B|A₁) * P(A₁) = 0.20 * 0.40 = 0.08

P(A₂ ∩ B) = P(B|A₂) * P(A₂) = 0.05 * 0.60 = 0.03

c. To compute P(B), we can use the law of total probability, which states that the probability of an event B can be calculated as the sum of the probabilities of B given each possible event in the sample space:

P(B) = P(B|A₁) * P(A₁) + P(B|A₂) * P(A₂) = 0.20 * 0.40 + 0.05 * 0.60 = 0.09

d. To compute P(A₁|B) and P(A₂|B), we can use Bayes' theorem:

P(A₁|B) = P(B|A₁) * P(A₁) / P(B) = 0.20 * 0.40 / 0.09 ≈ 0.89

P(A₂|B) = P(B|A₂) * P(A₂) / P(B) = 0.05 * 0.60 / 0.09 ≈ 0.33

Therefore, the probability that event A₁ occurred given that event B occurred is approximately 0.89, and the probability that event A₂ occurred given that event B occurred is approximately 0.33.

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Answer:

4

Step-by-step explanation:

one apple is cut into 3 pieces

Number of apples = 4

Number of apple pieces = 4 * 3 = 12 pieces

Number of piece that each friend get = 12 ÷ 3 = 4

 f(t) = L^(-1){1 / (s^2 + s)} Inverse Laplace transform tables or techniques, determine the time-domain function f(t) that satisfies the given integral equation.

The Laplace transform is a powerful mathematical tool that can be used to solve complex integral equations, like the one you've provided: f(t) + t * ∫(t - τ)f(τ)dτ = t.

To solve this equation using the Laplace transform, follow these steps:

1. Apply the Laplace transform to both sides of the equation. The Laplace transform of f(t) is F(s), and the Laplace transform of t is 1/s^2. The integral equation becomes:

  L{f(t)} + L{t * ∫(t - τ)f(τ)dτ} = L{t}

  F(s) + L{t * ∫(t - τ)f(τ)dτ} = 1/s^2

2. Next, apply the convolution theorem to the integral term. The convolution theorem states that L{f(t) * g(t)} = F(s) * G(s). In this case, f(t) = t and g(t) = (t - τ)f(τ):

  F(s) + L{t} * L{(t - τ)f(τ)} = 1/s^2

3. Now, substitute the known Laplace transforms for t and f(t):

  F(s) + (1/s^2) * F(s) = 1/s^2

4. Combine the terms containing F(s):

  F(s) * (1 + 1/s^2) = 1/s^2

5. Isolate F(s) by dividing both sides of the equation by (1 + 1/s^2):

  F(s) = (1/s^2) / (1 + 1/s^2)

6. Simplify the expression for F(s):

  F(s) = 1 / (s^2 + s)

7. Finally, apply the inverse Laplace transform to F(s) to obtain the solution for f(t):

  f(t) = L^(-1){1 / (s^2 + s)}

Using inverse Laplace transform tables or techniques, you can determine the time-domain function f(t) that satisfies the given integral equation.

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Answer: 1B.   2C 3E 4D 5E

Step-by-step explanation:

Answer:

\(\frac{5}{7} - \frac{3}{7} =\) B \(\frac{2}{7}\)

\(\frac{1}{6} + \frac{3}{6} =\) C \(\frac{2}{3}\)

\(\frac{1}{2} + \frac{1}{4} =\) E \(\frac{3}{4}\)

\(\frac{1}{5} + \frac{1}{2} =\) D \(\frac{7}{10}\)

\(\frac{1}{6} - \frac{1}{8} =\) A \(\frac{1}{24}\)

1-  (2x-4)(x+5)

Multiplying using the distributive property, we get:

(2x-4)(x+5) = 2x(x) + 2x(5) - 4(x) - 4(5)

= 2x^2 + 10x - 4x - 20

= 2x^2 + 6x - 20

Therefore, (2x-4)(x+5) simplifies to 2x^2 + 6x - 20.

2-(x-2)^2

Expanding using the formula for the square of a binomial, we get:

(x-2)^2 = x^2 - 4x + 4

Therefore, (x-2)^2 simplifies to x^2 - 4x + 4.

3- (3x+1)^2

Expanding using the formula for the square of a binomial, we get:

(3x+1)^2 = (3x)^2 + 2(3x)(1) + (1)^2

= 9x^2 + 6x + 1

Therefore, (3x+1)^2 simplifies to 9x^2 + 6x + 1.

4- (3x-1)(2x^2+5x-4)

Using the distributive property, we can multiply each term in the first polynomial by each term in the second polynomial:

(3x-1)(2x^2+5x-4) = 3x(2x^2) + 3x(5x) - 3x(4) - 1(2x^2) - 1(5x) + 1(4)

= 6x^3 + 15x^2 - 12x - 2x^2 - 5x + 4

= 6x^3 + 13x^2 - 17x + 4

Therefore, (3x-1)(2x^2+5x-4) simplifies to 6x^3 + 13x^2 - 17x + 4.