I don’t get this help

To answer your question, first we need to understand what "equivalent expressions" means. Equivalent expressions are two or more expressions that have the same value for all possible values of the variables in the expressions.

Now, let's find all the expressions that are equivalent to 4√5:

- 8√5: This expression is equivalent to 4√5 because 8/4 = 2, and √5 x √5 = 5, so 4√5 = 2(2√5) = 8√5.
- √80: This expression is also equivalent to 4√5 because √80 can be simplified as √(16 x 5) = 4√5.
- 4√20: This expression is not equivalent to 4√5 because 20 is not the same as 5. However, we can simplify 4√20 as 4√(4 x 5) = 8√5. Therefore, 8√5 and 4√20 are equivalent to 4√5.

So, the expressions that are equivalent to 4√5 are 8√5, √80, and 8√5.      

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The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

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

perimeter = (s)side length of octagon × (n)number of side.

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

11 = s/[2tan(180/12)]

s = 11 × 2tan15

s = 5.8949

perimeter = 5.8949 × 12 = 70.7388

Area of dodecagon = 1/2 × 11 × 70.7388

Area of dodecagon = 389.0634 in²

Area of pentagon = 1/2 × 5.23 × 7.6

Area of pentagon = 19.874 in²

Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.

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The solution to the inequality is x = 0

The graph of x = 0 is a line that separates the plane into two half-planes

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

|1/5x + 2| + 4 >= 6

This gives

|1/5x + 2| >= 2

Remove the absolute bracket

2 <= 1/5x + 2 <= 2

So, we have

0 <= 1/5x <= 0

Evaluate

0 <= x <= 0

This means that

x = 0

The graph of x = 0 is a vertical line in the coordinate plane that passes through the origin (0,0) and extends infinitely in both positive and negative directions along the y-axis.

It represents all points that have an x-coordinate of 0.

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Answer:

The 1st term is -67

Step-by-step explanation:

I. When Sn = \(\frac{n}{2}\)(\(a_{1} + a_{n}\))

   If  Sn = 124, n = 8 and \(a_{n}\) = 98

                124 = 8/2(a + 98)

                124 = 4(a + 98)

                124 = 4a + 392

                124 - 392 = 4a

                -268/4 = a

                -67 = \(a_{1}\)

Hope that help :D

If -4 is a zero with multiplicity 1, then (x + 4) is a factor of the polynomial. Similarly, if 1 is a zero with multiplicity 2, then (x - 1)^2 is a factor of the polynomial. Therefore, we can write the polynomial in factored form as:

f(x) = a(x + 4)(x - 1)^2

where "a" is a constant that we need to determine.

To find "a", we use the fact that f(0) = -12. Substituting x = 0 into the equation above, we get:

f(0) = a(0 + 4)(0 - 1)^2

-12 = -4a

Solving for "a", we get:

a = 3

Therefore, the polynomial is:

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

Note that this polynomial has a zero at x = -4 (with multiplicity 1), a zero at x = 1 (with multiplicity 2), and f(0) = -12.

The horizontal shift for the absolute value function f(x)=3 |x 6| 9 is  Left shift, 6 units.

f(x)=3 |x+6| +9

The horizontal shift is shown by the " +6 " at the x. X will always inform us of any horizontal or right/left movements. Therefore, changing the x results in a horizontal change.

But aware! Contrary to what you would believe, it is not. A LEFT shift is a PLUS6. (A MINUS6 would normally constitute a right shift, but not in this instance.)

This is the parent function:

f(x) = |x|

Hence, our equation:

f(x)=3 |x+6| +9

has undergone two alterations. LEFT6 as a result of

The x says " +6 ". Additionally, the equation's last +9 indicates a vertical shift of 9, or UP9.

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The value of C from the column value table is C = 40

Given data ,

Let the table be represented as T

where ,

6 B D

10 25 35

A C 56

Now , the ratio of the table values is r = 35 / 56

r = 5 / 8

So , from the proportion , the value of C is

25 = ( 5/8 ) C

Multiply by 8 on both sides , we get

5C = 200

Divide by 5 on both sides ,we get

C = 40

Hence , the proportion is solved and C = 40

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The correct answer is D \(\frac{45a^{16}c^{34}}{b^{27}}\)

The expression can be found as follows:

\((15a^{0}b^{2}c^{34})(3a^{16}b^{-29}c^{0})\)

Remember the number powered by 0 is 1

\((15(1)b^{2}c^{34})(3a^{16}b^{-29}(1))\)

Multiply the coefficients.

\(45 b^{2} c^{34} a^{16}b^{-29}\)

Calculate by adding the power in the same coefficients

\(45 b^{2-29} c^{34} a^{16}\)

Simplify

\(45 a^{16}b^{-27} c^{34}\)

The negative power can be written as the denominator

\(\frac{45a^{16}c^{34}}{b^{27}}\)

Hence the correct answer is D. \(\frac{45a^{16}c^{34}}{b^{27}}\)

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Given the following information: Five years ago, someone used her $40,000 saving to make a down payment for a townhouse in RTP. The house is a three-bedroom townhouse and sold for $200,000 when she bought it. After paying down payment, she financed the house by borrowing a 30-year mortgage.

Mortgage interest rate is 4.25%. Right after closing, she rent out the house for $1,800 per month. In addition to mortgage payment and rent revenue, she listed the following information so as to figure out investment return: 1. HOA fee is $75 per month and due at end of each year 2. Property tax and insurance together are 3% of house value 3. She has to pay 10% of rent revenue for an agent who manages her renting regularly 4. Her personal income tax rate is 20%. While rent revenue is taxable, the mortgage interest is tax deductible. She has to make the mortgage amortization table to figure out how much interest she paid each year 5. In the last five years, the market value of the house has increased by 4.8% per year 6.

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( ∂V ∂U ​ ) T ​ for a van der Waals gas is equal to Vm / (bRT - Vm^2a).

To find ( ∂V ∂U ​ ) T ​ for a van der Waals gas, we start with the general equation:

( ∂V ∂U ​ ) T ​ = T( ∂T ∂P ​ ) V ​ - P

For a van der Waals gas, the equation of state is given by:

P = (Vm - b)RT / (Vm^2 - a)

Here, P represents pressure, Vm represents molar volume, T represents temperature, R is the ideal gas constant, and a and b are van der Waals constants.

We need to differentiate the equation of state with respect to internal energy (U) at constant temperature (T), while keeping the volume (V) constant. Since V = Vm * N, where N is the number of moles, we can rewrite the equation as:

P = (Vm - b)RT / (Vm^2 - a)

Differentiating both sides with respect to U at constant T and V:

( ∂P ∂U ) T, V = ( ∂P ∂Vm ) T, V * ( ∂Vm ∂U ) T, V

The derivative (∂P/∂Vm) T,V can be found by differentiating the van der Waals equation of state with respect to Vm, while keeping T and V constant. Similarly, (∂Vm/∂U) T,V can be obtained by differentiating Vm with respect to U at constant T and V.

After evaluating the derivatives, we obtain:

( ∂V ∂U ) T = Vm / (bRT - Vm^2a)

Therefore, the final answer is ( ∂V ∂U ​ ) T ​ = Vm / (bRT - Vm^2a).

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Answer:

  a. y = -x +2

  b. x appears to the first power (only)

Step-by-step explanation:

You want an equation and an explanation of why it is linear for the rule "input: x; output: y, 2 more than -1 times x".

The given wording tells you what the equation is:

  y = 2 + (-1·x) . . . . . . 2 more than -1 times x

  y = -x +2 . . . . . simplified

The equation is a linear equation because the variable x only shows up to the first power.

Solution

Find the Sine, cosine, tangent of - 120​

Answer:

can you show a pic tell me in the comments

Step-by-step explanation:

When the research objective is description, the appropriate method would be cross tabulation.

This method involves the tabulation of data according to two variables in order to describe the relationship between them. Averages and ANOVA are more appropriate for inferential purposes, while confidence intervals are used to estimate a population parameter with a certain degree of confidence. Therefore, cross tabulation would be the most appropriate method for describing relationships between variables. Cross tabulation, also known as contingency table analysis, is indeed a suitable method for descriptive research objectives. It allows for the examination of the relationship between two or more categorical variables by organizing the data in a table format.

By using cross tabulation, researchers can summarize and analyze the frequencies or proportions of the different combinations of categories within the variables of interest. This method provides a clear and concise way to describe and understand the patterns and associations between variables.

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Answer:

The answer is 89×2863=254,807.

Answer:

254,807

Step-by-step explanation:

We are going to use a method that breaks down the numbers and makes it easier to find the solution.

First, take 2000 from 2863 and 80 from 89.

So we have 2000 x 80 now.

We know that 80 x 1000 is 80,000 so we can double it to get 160,000.

2000 x 80 = 160,000

2000 x 9 = 18,000

863 x 80 = 69,040

863 x 9 = 7,767

7,767   +   69,040   +   18,000   +   160,000 = 254,807

Therefore, 254,807 is the correct answer

-kiniwih426

(a) When performing an ANOVA with the data the alternative hypothesis is at least two of the restaurants have different mean delivery times.

(b)75.8

Analysis of variance. or ANOVA, is a statistical method that separate observed variance data into different components to use for additional tests. A one way ANOVA is used for three or more groups of data, to gain information about the relationship between the dependent and independent variables.

The ANOVA table shows how the sum of squares are distributed according to source of variation, and hence the mean sum of squares.

It is given that a pizza lover wants to compare the average delivery times.

Therefore the null hypothesis and alternate hypothesis implies that,

H₀ =  all restaurants have equal mean delivery time

Hₐ = at least two restaurants have different two deliveries

Hence the alternate hypothesis for performing an ANOVA with the data is at least two of the restaurants have different mean delivery times.

The alternate hypothesis (Hₐ) defines that there is a statistically important relationship between two variables. Whereas null hypothesis states that is no statistical relationship between the two variables.

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Answer:

What is the set of whole numbers?

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

So to determine whether this is a function, we first need to know what a function is. A function is defined as for each input, there is only 1 output.

This output doesn't have to be unique and other inputs can output this output, but it only matters that each input outputs only one output.

So let's look at what you provided and specifically these two points:

(3, 5)

(3, -3)

This input 3, outputs 5 and -3, which is not a function since this input outputted 2 different outputs. One thing to note is had you provided the two points: (3, 5), (3, 5) instead then it would still be a function because the input outputted the same output of 5 both times.

Answer:

Line symmetry

Step-by-step explanation:

If you drew a straight line across the figure horizontally, you would see that both halves are symmetrical.

Answer: D

Step-by-step explanation: edge 2022

Answer:

B - a reflection across line n followed by a 270° rotation about point P

Step-by-step explanation:

got it correct on edge

The half-life of Potassium-42 can be calculated using the following formula:

t1/2 = (ln 2) / λ

where t1/2 is the half-life, ln is the natural logarithm, and λ is the decay rate.

Substituting the values given, we get:

t1/2 = (ln 2) / 0.055

t1/2 ≈ 12.6 hours

Therefore, the original quantity of Potassium-42 will be halved in approximately 12.6 hours.

It will take approximately 13.51 hours for the original quantity of potassium 42 to be halved with a decay rate of 5.5% per hour.

To find the number of hours it takes for potassium 42 to be halved with a decay rate of 5.5% per hour, we can use the formula:

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When X = 3 then Y = -6

Here is the explanation:

If Y1 = -4 when X1 = 2

and if X2 = 3 when Y2 = ?

The formula is

\(\frac{Y2}{X2} =\frac{Y1}{X1}\\\\Y2 = \frac{Y1}{X1} x X2\\\\Y2=\frac{-4}{2}x3\\\\Y2=-6\)

Hence if X = 3 then Y = -6

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The particular solution for the given system of differential equations with the initial values x(0) = -1 and y(0) = -3 is: x(t) = -e^(t) - e^(10t), y(t) = 3e^(t) + 3e^(10t) - 3.

To solve the given system of differential equations, we can use the method of simultaneous equations. Here are the steps to find the solution:

Step 1: Start with the given system of equations:

dx/dt = -5x + 2y

dy/dt = -3x

Step 2: We can solve this system by finding the derivatives of x and y with respect to t. Taking the derivative of the first equation with respect to t, we get:

d²x/dt² = -5(dx/dt) + 2(dy/dt)

Step 3: Substitute the given equations into the derivative equation:

d²x/dt² = -5(-5x + 2y) + 2(-3x)

Simplifying,

d²x/dt² = 25x - 10y - 6x

d²x/dt² = 19x - 10y

Step 4: Now, we have a second-order linear differential equation for x. We can solve this equation using the standard methods. Assuming a solution of the form x(t) = e^(rt), we can find the characteristic equation:

r² - 19r + 10 = 0

Step 5: Solve the characteristic equation for the values of r:

(r - 1)(r - 10) = 0

r₁ = 1, r₂ = 10

Step 6: The general solution for x(t) is given by:

x(t) = c₁e^(t) + c₂e^(10t), where c₁ and c₂ are constants.

Step 7: To find y(t), we can substitute the solution for x(t) into the second equation of the system:

dy/dt = -3x

dy/dt = -3(c₁e^(t) + c₂e^(10t))

Step 8: Integrate both sides with respect to t:

∫dy = -3∫(c₁e^(t) + c₂e^(10t))dt

Step 9: Evaluate the integrals:

y(t) = -3(c₁e^(t) + c₂e^(10t)) + c₃, where c₃ is another constant.

Step 10: Using the initial values x(0) = -1 and y(0) = -3, we can substitute these values into the solutions for x(t) and y(t) to find the values of the constants c₁, c₂, and c₃.

x(0) = c₁e^(0) + c₂e^(0) = c₁ + c₂ = -1

y(0) = -3(c₁e^(0) + c₂e^(0)) + c₃ = -3(c₁ + c₂) + c₃ = -3(-1) + c₃ = -3 + c₃ = -3

From the first equation, c₁ + c₂ = -1, and from the second equation, c₃ = -3.

Step 11: Substitute the values of c₁, c₂, and c₃ back into the solutions for x(t) and y(t) to obtain the particular solution:

x(t) = c₁e^(t) + c₂e^(10t) = (-1)e^(t) + (-1)e^(10t)

y(t) = -3(c₁e^(t) + c₂e^(10t)) + c₃ = -3((-1)e^(t) + (-1)e^(10t)) - 3

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Answer:

9 patients

Step-by-step explanation:

First I did 7 x 60 = 420

Then I divided 420 by 45

The answer was 9.3, and I rounded down meaning 9

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Answer:

4m,18,-g

4*n

Step-by-step explanation:

you just select the terms

The float value 3.14 can be represented as a literal in programming languages such as Python by using the notation "3.14".

This notation is used to directly express the decimal number with two decimal places. In programming, float literals are used to represent real numbers with fractional parts.

The "3.14" literal specifically represents the mathematical constant pi, which is commonly used in various mathematical and scientific calculations.

The use of the dot (.) as a decimal point signifies the separation between the integer and fractional parts of the number. This notation allows the float value 3.14 to be easily identified and used in computations or assignments within a programming context.

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With the help of some mathematical operations, we can conclude that after 42 months, coach will have a total amount of $8,356 in his bank account.

So, we know that coach gets 2.3% simple interest monthly.

Now, calculate the total amount after 42 months as follows:

Then, on monthly basis, the coach gets $97.75 as interest.

Then, for 42 months:

Hence, the total amount after 42 months:

Therefore, with the help of some mathematical operations, we can conclude that after 42 months, coach will have a total amount of $8,356 in his bank account.

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Correct question:

Coach deposits $4250 in the bank and gets 2.3% simple interest monthly. He keeps the money in the bank for 42 months without any deposits or withdrawals. How much money will he have in the bank after 42 months? Round to the nearest cent.

The mass of an ocean sunfish increases exponentially with time since it was born, according to the function \(M(t)=(1.35)^t+5\), where t is elapsed time in days and M(t) is mass in milligrams.

The relationship between the elapsed time, t, in days, since an ocean sunfish is born, and its mass, M(t), in milligrams, is modeled by the function M(t)=\((1.35)^t+5\). This function expresses the exponential growth of the sunfish’s mass over time As the elapsed time increases, the rate of the sunfish’s mass increase increases as well. This is due to the base of the exponential function, 1.35, being greater than one. As the exponent, t, increases, the function value increases more and more rapidly. The +5 term in the function is a constant that controls the initial mass of the sunfish at time t=0, when the fish is born. Therefore, the function \(M(t)=(1.35)^t+5\)models the exponential growth of the mass of an ocean sunfish over time since it was born.

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Answer:

20 meters per second

Step-by-step explanation:

240/12

Answer: The average change in elevation per second is -20 meters.

Step-by-step explanation: If a glider descends 240 meters in 12 seconds, then it descends 20 meters in one second. However, because the glider is descending, then the value and slope of change must be negative.

Answer:

(-1,3)

Step-by-step explanation:

3x + 6y  =  15

6x + 6y =  12                   Subtract

-3x        = 3                     Divide by 3

-x = 1                               multiply by - 1

x =  - 1

3x + 6y = 15

3(-1) + 6y = 15

-3 + 6y = 15             Add 3 to both sides

-3+3 + 6y = 15 + 3

6y = 18                    Divide by 6

y = 18/6

y = 3

(-1,3)