HELP MEE ILL GIVE BRAINLIEST!!

Answer:

hope this helps you to solve it

Answer:

E

Step-by-step explanation:

NO

A. 559 meters Is the answer

The markers identified when identifying significant digits include:

Significant digits in mathematics refers to digits that  are meaningful in mathematical calculations. This implies that their position and the quantity alters the value of the number. The particular digit and the position determines whether the digit is significant or not.

Instances of digits with their locations that are significant are:

These instances results to significant digits while the instances below the digits are insignificant:

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The probability that you and your friend both have the same two numbers is approximately 0.4823, or about 48.23%.

If you and your friend each roll two dice, there are two possible cases:

You both roll doubles (i.e., both dice show the same number).

You both roll non-doubles (i.e., the two dice show different numbers).

Let's calculate the probability of each case separately:

The probability of rolling doubles on one die is 1/6, since there are six possible outcomes (1, 2, 3, 4, 5, or 6) and only one of them will result in doubles. The probability of rolling doubles on both dice is the product of the probabilities of rolling doubles on each die, which is (1/6) * (1/6) = 1/36. Therefore, the probability that you and your friend both roll doubles is (1/36) * (1/36) = 1/1296.

The probability of rolling non-doubles on one die is 5/6, since there are five possible outcomes (2, 3, 4, 5, or 6) that will result in non-doubles, out of a total of six possible outcomes. The probability of rolling non-doubles on both dice is the product of the probabilities of rolling non-doubles on each die, which is (5/6) * (5/6) = 25/36. Therefore, the probability that you and your friend both roll non-doubles is (25/36) * (25/36) = 625/1296.

Therefore, the overall probability that you and your friend both have the same two numbers is the sum of the probabilities of the two cases:

1/1296 + 625/1296

= 626/1296

= 0.4823 (rounded to four decimal places)

So, the probability that you and your friend both have the same two numbers is approximately 0.4823, or about 48.23%.

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Given the following relationship dQ = (∂T/∂E)_V dT + [(∂V/∂E)_T + P]dV

To prove the relationship between heat transfer (dQ) and changes in temperature (dT) and volume (dV) using the internal energy (E) as a function of state E(T, V), we need to differentiate E with respect to T and V.

The first step is to express the total differential of E using the chain rule:

dE = (∂E/∂T)_V dT + (∂E/∂V)_T dV

where (∂E/∂T)_V represents the partial derivative of E with respect to T at constant V, and (∂E/∂V)_T represents the partial derivative of E with respect to V at constant T.

Now, let's rearrange the equation to isolate dQ:

dQ = (∂E/∂T)_V dT + (∂E/∂V)_T dV

To relate dQ to the given partial derivatives, we need to consider the first law of thermodynamics:

dQ = dE + PdV

where P is the pressure.

Substituting dE + PdV into the equation above:

dQ = (∂E/∂T)_V dT + (∂E/∂V)_T dV + PdV

Now, we can rearrange the terms to match the desired relationship:

dQ = (∂E/∂T)_V dT + [(∂E/∂V)_T + P]dV

This matches the relationship stated:

dQ = (∂T/∂E)_V dT + [(∂V/∂E)_T + P]dV

Therefore, we have successfully proven the relationship between heat transfer (dQ) and changes in temperature (dT) and volume (dV) using the internal energy (E) as a function of state E(T, V).

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Psychologists theorize that the mean time on the test for non-schizophrenics (1) will be less than the mean time for schizophrenics (2).

We have two groups: schizophrenics and non-schizophrenics. The time spent on the psychological test is used as a measure of cognitive function.

Let's denote the mean time for schizophrenics as μ2 and the mean time for non-schizophrenics as μ1.

According to the psychologist's theory, they expect μ1 < μ2, meaning that the mean time for non-schizophrenics will be less than the mean time for schizophrenics.

This hypothesis can be tested using statistical analysis such as a t-test or a hypothesis test comparing the means of two independent groups.

Based on the psychologist's theory, they anticipate that the mean time on the psychological test for non-schizophrenics will be lower than the mean time for schizophrenics. Statistical analysis can be conducted to test this hypothesis and determine if there is evidence to support the theory.

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The value of the exponent (2/5)^3 is \(\frac{8}{125}\)

In the above question, it is given that

(2/5)^3

The number of times a number has been multiplied by itself is referred to as an exponent. For instance, the expression 2 to the third (written as 2^3) signifies 2 x 2 x 2 = 8.

We need to solve it and then find the value of the exponent

(2/5)^3

= \(\frac{2}{5}\) x \(\frac{2}{5}\) x \(\frac{2}{5}\)

= \(\frac{2 . 2. 2}{5 . 5 . 5}\)

= \(\frac{8}{125}\)

Therefore the value of the exponent (2/5)^3 is \(\frac{8}{125}\)

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After answering the provided question, we can conclude that Therefore, equation the money supply needs to decrease by 13% to balance the exchange equation and have a 0% change in price.

Part A:

The exchange equation is MV = PQ, where M is the money supply, V is the velocity of money, P is the price level, and Q is the quantity of goods and services exchanged.

MV = PQ

(M + 3%) (V - 1%) = PQ

MV + 2%M - 3%V - 3%MV = PQ

2%M - 3%V - 3%MV = -MV

2%M - 3%V - 3%MV = -M(1 + 2%)

Therefore, a 5% decrease (-5%) in the right side of the equation is needed to balance the exchange equation.

Part B:

To have a 0% change in price, the percentage change in the left side of the equation (MV) needs to be equal and opposite to the percentage change in the right side (PQ).

MV = PQ

(M + x%) (V + 2%) = (P + 0%) (Q + 5%)

MV + 2%M + Vx + 2%xV = PQ + 5%P + 5%Q

MV + 2%M + Vx + 2%xV = MV + 5%P + 5%Q

2%M + Vx + 2%xV = 5%P + 5%Q

2%M + Vx + 2%xV = 5%y

x = (5%y - 2%M - 2%xV) / V

x = (5%(-5%) - 2%(0%) - 2%(2%)) / 2%

x = -13%

Therefore, the money supply needs to decrease by 13% to balance the exchange equation and have a 0% change in price.

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The expressions that can be used to determine the total area, in square feet, of Rajiv's garage after he removes the wall are

We have to solve for the total area of the garage of Rajiv after he had removed the wall

This is given as

12 * x + 12 * 14.5

= 12(14.5 + x)

Option B

When we expand the expression 12(14.5 + x)

174 + 12x

re written as

12x + 174

Option G

The expression that can be used to determine the total area, in square feet, of Rajiv's garage after he removes the wall is given as 12(14.5 + x), 12x + 174

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Answer:

it stays the same

Step-by-step explanation:

if it was -3.3 then it would change to 3.3 but because it is already in the positives it stays a positive plz double chesk if needed tho

Answer:

\(3.3\)

Step-by-step explanation:

Absolute value expresses the distance of a number from 0.

For this reason, no matter if the number is negative or positive, the absolute value of it will always be positive.

In this case, it is simply \(|3.3|=3.3\).

The set of numbers { 9, 12, 14 } could represent the three sides of a right triangle.

In a right triangle, the Pythagorean theorem states that the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides. This can be expressed as c^2 = a^2 + b^2, where c is the length of the hypotenuse, and a and b are the lengths of the other two sides.

By checking the given sets of numbers, we can calculate the squares of the numbers and see if they satisfy the Pythagorean theorem. For the set { 9, 12, 14 }, we have 9^2 + 12^2 = 81 + 144 = 225, and 14^2 = 196. Since 225 = 196, the set { 9, 12, 14 } satisfies the Pythagorean theorem and can represent the three sides of a right triangle.

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The last two rows of the table should be completed as follows:

Input   Output

8       22.80

10      28.50

An algebraic expression is a mathematical phrase that contains numbers, variables, and operations. It is used to represent a single quantity or value, and can be written in terms of one or more variables.

The rule given is an algebraic expression, x, which is the input, multiplied by 2.85, which is the output. Using this information, we can determine the cost of 10 muffins.

To find the cost of 10 muffins, we can use the algebraic expression given. First, we will multiply 10, the number of muffins, by 2.85, the cost of one muffin. This gives us a total of 28.50. Therefore, the cost of 10 muffins is 28.50.

Using this same rule and process, we can also determine the cost of any number of muffins. For example, if we want to know the cost of 15 muffins, we can simply multiply 15 by 2.85, giving us a total of 42.75.

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The correct answer for the function that contains the points is none of the above.

To determine which function contains the points (0,4) and (3,108),

substitute the x-values and y-values in the given function options and see which function satisfies both points.

1. f(x) = 2x + 3

For (0,4): f(0) = 2(0) + 3 = 0 + 3 = 3 (incorrect)

For (3,108): f(3) = 2(3) + 3 = 6 + 3 = 9 (incorrect)

2. f(x) = 4x + 3

For (0,4): f(0) = 4(0) + 3 = 0 + 3 = 3 (incorrect)

For (3,108): f(3) = 4(3) + 3 = 12 + 3 = 15 (incorrect)

3. f(x) = 2x

For (0,4): f(0) = 2(0) = 0 (incorrect)

For (3,108): f(3) = 2(3) = 6 (incorrect)

4. f(x) = 4x

For (0,4): f(0) = 4(0) = 0 (incorrect)

For (3,108): f(3) = 4(3) = 12 (incorrect)

5. f(x) = 4(2)x

For (0,4): f(0) = 4(2)(0) = 0 (incorrect)

For (3,108): f(3) = 4(2)(3) = 24 (incorrect)

6. f(x) = 4(3)x

For (0,4): f(0) = 4(3)(0) = 0 (incorrect)

For (3,108): f(3) = 4(3)(3) = 36 (incorrect)

None of the given functions satisfy both points (0,4) and (3,108).

The complete question is ' Which function contains the points (0,4) and (3,108)? Select the correct answer below:

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Answer:

5

Step-by-step explanation:

5x5=25

or

5xa=25

a=5

Answer:

a=5

Step-by-step explanation:

The basic technique to isolate a variable is to “do something to both sides” of the equation, such as add, subtract, multiply, or divide both sides of the equation by the same number.

\(\frac{5a}{5} =\frac{25}{5}\)

a=5

Adjust the parameters as needed, such as the step size (h) and the final x-value (xn), and run the code to obtain the solution for y(x).

The resulting plot will show the solution curve.

To solve the given set of differential equations using the Runge-Kutta method in MATLAB, we need to convert the second-order differential equations into a system of first-order differential equations.

Let's define new variables:

y = y(x)

z = dz/dx

Now, we have the following system of first-order differential equations:

dy/dx = z (1)

dz/dx = -k/(2y) (2)

To apply the Runge-Kutta method, we need to discretize the domain of x. Let's assume a step size h for the discretization. We'll start at x = 0 and proceed until x = infinite.

The general formula for the fourth-order Runge-Kutta method is as follows:

k₁ = h f(xn, yn, zn)

k₂ = h f(xn + h/2, yn + k₁/2, zn + l₁/2)

k₃ = h f(xn + h/2, yn + k₂/2, zn + l₂/2)

k₄ = h f(xn + h, yn + k₃, zn + l₃)

yn+1 = yn + (k₁ + 2k₂ + 2k₃ + k₄)/6

zn+1 = zn + (l₁ + 2l₂ + 2l₃ + l₄)/6

where f(x, y, z) represents the right-hand side of equations (1) and (2).

We can now write the MATLAB code to solve the differential equations using the Runge-Kutta method:

function [x, y, z] = rungeKuttaMethod()

   % Parameters

   k = 1;              % Constant k

   h = 0.01;           % Step size

   x0 = 0;             % Initial x

   xn = 10;            % Final x (adjust as needed)

   n = (xn - x0) / h;  % Number of steps

   % Initialize arrays

   x = zeros(1, n+1);

   y = zeros(1, n+1);

   z = zeros(1, n+1);

   % Initial conditions

   x(1) = x0;

   y(1) = 0;

   z(1) = 0;

   % Runge-Kutta method

   for i = 1:n

       k1 = h * f(x(i), y(i), z(i));

       l1 = h * g(x(i), y(i));

       k2 = h * f(x(i) + h/2, y(i) + k1/2, z(i) + l1/2);

       l2 = h * g(x(i) + h/2, y(i) + k1/2);

       k3 = h * f(x(i) + h/2, y(i) + k2/2, z(i) + l2/2);

       l3 = h * g(x(i) + h/2, y(i) + k2/2);

       k4 = h * f(x(i) + h, y(i) + k3, z(i) + l3);

       l4 = h * g(x(i) + h, y(i) + k3);

       y(i+1) = y(i) + (k1 + 2*k2 + 2*k3 + k4) / 6;

       z(i+1) = z(i) + (l1 + 2*l2 + 2*l3 + l4) / 6;

       x(i+1) = x(i) + h;

   end

   % Plotting

   plot(x, y);

   xlabel('x');

   ylabel('y');

   title('Solution y(x)');

end

function dydx = f(x, y, z)

   dydx = z;

end

function dzdx = g(x, y)

   dzdx = -k / (2*y);

end

% Call the function to solve the differential equations

[x, y, z] = rungeKuttaMethod();

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Answer:

4th ?

First equation. Is it -6 or = 6 ?

Step-by-step explanation:

Answer:

D. quadrant IV

The calculated measure of IAL is 92 degrees

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

The circle

Given that

AI = 134 degrees

We have

IAL + 2 * AI = 360

Substitute the known values in the above equation, so, we have the following representation

IAL + 2 * 134 = 360

So, we have

IAL = 360 - 2 * 134

Evaluate

IAL = 92

Hence, the measure of IAL is 92 degrees

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pens 8 it should be right

Answer:

its B

cos X= 12/15= 0.80

Step-by-step explanation:

i just took the test

False. Proportionality between the slopes of a constraint and the objective function is not a general property in optimization. The relationship between these slopes depends on the specific problem and can vary.

The proportionality between the slopes of a constraint and the objective function is not a universal principle in optimization. It is true that in some cases, there may be a proportional relationship between these slopes. This means that if the slope of a constraint increases or decreases, the slope of the objective function will also increase or decrease by a proportional amount. However, it is important to note that this proportionality is not a fundamental characteristic of all optimization problems.

In many optimization problems, the slopes of constraints and the objective function may have different behaviors and may not be directly related. The slopes can vary independently based on the specific problem structure, constraints, and objective function. In some cases, the slopes may even have an inverse relationship, meaning that an increase in the slope of a constraint leads to a decrease in the slope of the objective function, or vice versa.

In conclusion, while proportionality between the slopes of a constraint and the objective function can occur in some optimization problems, it is not a general property and does not hold true for all scenarios. The relationship between these slopes is problem-dependent and can vary significantly.

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To solve this question, we can substitute the given point into the inequalities. That is, by substituying x=2 and y=-3 into the first inequality, we obtain

and the left hand side is equal to 6-3=3. Because 3>-3, the point (2,-3) can be a solution. However, we must be the same for the remaining inequality, that is, by substituying x=2 and y=-3 into the second inequality, we have

and the left hand side is equal to 2-6=-4, then -4<4.

With both results, we can conclude that the point (2,-3) is a solution of the system.

Answer: Height: 24.9 inch, Width: 44.3 inch

Step-by-step explanation:

The total height of the TV is given by H = 28 inches

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

For a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

if a² + b² = c² , it is a right triangle

if a² + b² < c² , it is an obtuse triangle

if a² + b² > c² , it is an acute triangle

Given data ,

Let the triangle be represented as ΔABC

Now , We can use the Pythagorean theorem to find the height of the TV. Let h be the height of the screen in inches. Then, we have:

h² + 45² = 51²

Simplifying and solving for h:

h² = 51² - 45²

h² = 2601 - 2025

h² = 576

Taking square roots on both sides , we get

h = √(576)

h = 24 inches

Therefore, the height of the screen is 24 inches.

To find the total height of the TV, we need to add the 4 inches from the base to the height of the screen:

Total height of the TV , H = 24 + 4

Total height of the TV , H = 28 inches

Hence , the total height of the TV is 28 inches.

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The complete question is attached below :

Ava has a large-screen TV. The TV has a screen with a 51-inch diagonal and a width of 45 in. The base of the TV is 4 in. from the bottom of the screen. what is the total height,h,in inches, of the TV?

Answer:

It's B

Step-by-step explanation:

Functions can be represented by tables and equations

The function represented by the table is f(x) = x + 1

From the table, we have the following ordered pairs

(x,y) = (-1,0) (0,1) (1,2) and (2,3)

Notice that the difference between the x and y values is 1.

So, we have:

y - x = 1

Add 1 to both sides

y = x + 1

Express as a function

f(x) = x + 1

Hence, the function represented by the table is f(x) = x + 1

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Answer:

16 is the answer ....................

Answer:

9 i guess

Step-by-step explanation:

Answer:

√2685 is your answer

hope this will help you

The type of scale used to evaluate the food at a new restaurant on 7-point scales with bipolar adjectives such as good-bad and inexpensive-expensive is known as a Likert scale.

This type of scale is commonly used in surveys to measure attitudes and opinions towards a particular topic, in this case, the food at a new restaurant. A Likert scale consists of a series of statements or adjectives that respondents are asked to rate on a scale that ranges from strongly disagree to strongly agree or, in this case, from bad to good and from inexpensive to expensive.

The bipolar adjectives used in the scale allow for a clear distinction between the positive and negative aspects of the food, which helps to ensure that the responses are more accurate and meaningful. The 7-point scale provides a wider range of options than a binary scale, which allows for more nuanced and detailed responses.

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The quotient include the following: D. \(\frac{x(2x-3)}{7}\)

In Mathematics and Geometry, a quotient is a mathematical expression that is simply used to represent the division of a number (numerator) by another number (denominator).

Based on the information provided above, we can logically deduce the following mathematical expression;

\(\frac{2x-3}{x} \div \frac{7}{x^2}\)

By rearranging the mathematical expression using the multiplication operation, we have:

\(\frac{2x-3}{x} \times \frac{x^{2} }{7}\\\\2x-3 \times \frac{x }{7}\\\\\frac{x(2x-3)}{7}\)

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How are the algebraic expressions divided?

a) (4x4-12x³ + 7x² + 3x - 2) by (2x²-3x-2) = (2x-1) (x-1)

Factorization of the numerator ,

\(4x^4-12x^3 + 7x^2 + 3x - 2\\\\= (4x^4+ 7x^2 - 2) -12x^3+3x\\\\= (4x^4- x^2+ 8x^2 - 2) -12x^3+3x\\\\=(4x^4- x^2)+ (8x^2 - 2) -12x^3+3x\\\\= x^2(4x^2- 1)+ 2( 4x^2 - 1) -12x^3+3x\\\\=(4x^2- 1)(x^2+2)-12x^3+3x\\\\=(4x^2- 1)(x^2+2)+(-12x^3+3x)\\\\=(4x^2- 1)(x^2+2)-3x(4x^2-1)\\\\=(4x^2- 1)(x^2+2-3x)\\\\=(4x^2- 1)(x^2-x-2x+2)\\\\=(4x^2- 1)((x^2-x)+(-2x+2))\\\\=(4x^2- 1)(x(x-1)-2(x-1))\\\\=(4x^2- 1)(x-1)(x-2)\\\\=(2x+1)(2x-1)(x-1)(x-2)\)-----(1)

Factorization the denominator ,

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

Divide (1) by (2)

= \(\frac{(2x+1)(2x-1)(x-1)(x-2)}{(2x+1)(x-2)}\)

= (2x-1) (x-1)

b) (x² + 4y¹) by (x² + 2y²-2xy)

\(\frac{x^{2} +4y}{x^{2} +2y^{2} -2xy}\)

This is the simplest form of the algebraic expression.

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