I have been curious about this question my whole life.
What is 2+2? Is it 22 or 4??

The real GDP for country A in 2004 prices was 260.87 billion.

To calculate the real GDP in 2004 prices, we need to use the formula: real GDP = nominal GDP x Deflator. Given that the nominal GDP in 2005 for country A was 300 billion and the deflator against 2004 prices was 1.15, we can substitute these values into the formula.

Real GDP = 300 billion x 1.15 = 345 billion. However, since we want to find the real GDP in 2004 prices, we need to adjust it. To do that, we divide the calculated real GDP by the deflator: 345 billion / 1.15 = 300 billion.

Therefore, the real GDP for country A in 2004 prices is 260.87 billion.

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Answer:

It is 129

Step-by-step explanation:

Since all the digits in the decimal from right to left are less than 5, they all are nearest to 0

So 129.444 can be rounded to 129.000 or 129

Answer:  The total cost for the frame is $78.00

Step-by-step explanation:

Photograph size = 5 inches x 8 inches

Perimeter = 5 + 5 +8 + 8

Perimeter =26 inches

Cost = $3.00 / inch for a silver frame

Total frame cost = 26 inches x $3.00 = $78.00

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Answer:

I think that the selected answer is correct

Step-by-step explanation:

Answer:

Its step 3 which needs correction.

Step-by-step explanation:

step 3 is deeply a mistake, the step 3 correction is correct that the total sum of interior angles which is 180 degrees is equal to the angle of total straight line angle. Step 2 is correct that when angle m plus angle p sums, they mix up to 180 degrees and its adjacent supplementary angles.

Answer:

7.3333, so if you round down, 7.

Step-by-step explanation:

5 1/2 divided by 3/4 is 7.3333

Answer:

Its AD||CD

Step-by-step explanation:

The standard deviation of the concentration of the unknown sample can be calculated using the formula: Standard deviation of concentration = (Standard deviation of absorbance) / (Average absorbance)

In this case, the standard deviation of the absorbance is given as 0.11 units and the average absorbance is given as 1.23 units.
Using the formula, we can calculate the standard deviation of the concentration:
Standard deviation of concentration = 0.11 / 1.23

= 0.0894
So, the standard deviation of the concentration of the unknown sample is approximately 0.0894.
The standard deviation of the concentration of the unknown sample is 0.0894.
The standard deviation of the concentration of the unknown sample measures how spread out the concentrations are from the average concentration.

It is an important statistical measure that helps in assessing the reliability and precision of the measurements.

In this case, we are given the average absorbance of the unknown sample as 1.23 units and the standard deviation of the absorbance as 0.11 units.

To find the standard deviation of the concentration, we use the formula:

Standard deviation of concentration = (Standard deviation of absorbance) / (Average absorbance).

Plugging in the values, we get:

Standard deviation of concentration = 0.11 / 1.23

= 0.0894.

Therefore, the standard deviation of the concentration of the unknown sample is approximately 0.0894.

This means that the concentrations of the unknown sample measured three times may vary by around 0.0894 units from the average concentration.

It is important to consider this variability when interpreting the results and making conclusions based on the measurements.

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Hence, there are 8! * 26 ways for the club members to line up in which the president is not next to the vice president.

To determine the number of ways the club members can line up such that the president is not next to the vice president, we can consider the following cases:

Case 1: The president is at one end and the vice president is at the other end. In this case, there are 8 remaining members who can be arranged in 8! (8 factorial) ways.

Case 2: The president is at one end and the vice president is somewhere in the middle. In this case, there are 8 remaining members who can be arranged in 7! (7 factorial) ways. Additionally, the vice president can be positioned in one of the 8 possible places within the line.

Case 3: The president is somewhere in the middle and the vice president is at one end. This case is similar to Case 2, where the vice president can be arranged in one of the 8 possible places and the remaining 8 members can be arranged in 7! ways.

Case 4: Both the president and the vice president are somewhere in the middle. In this case, there are 8 remaining members who can be arranged in 8! ways. Additionally, the president and the vice president can be positioned in any two of the 9 available places within the line.

Therefore, the total number of ways the club members can line up without the president being next to the vice president is:

8! + (8! * 8) + (8! * 8) + (8! * 9) = 8!(1 + 8 + 8 + 9)

= 8! * 26

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The function that represents the balance after t years is ,

FV = $470( 1.011)^4t

The formula for calculating future value:

FV = P (1 + r)^nm

Where:

FV = Future value

P = Present value

R = interest rate

m = number of compounding

N = number of years

here, we have,

given that,

P = Present value= $470.

R = interest rate = 4.4%/4 =

m = number of compounding =4

N = number of years = t

FV = $470( 1.011)^4t

Hence,  The solution is, a function to represent the balance A in the account after t years is, FV = $470( 1.011)^4t

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Answer:

-4 < 4

Step-by-step explanation:

-4 is less than 0  

4 is greater than 0

-4 < 4

The fraction that satisfies the problem is 20/24.

Equivalent fractions are fractions that have the same value, but different numerators and denominators.

If the fraction is equivalent to 5/6, then the numerator and denominator of the fraction is a multiple of 5 and 6, respectively.

Let x be the factor

fraction = 5x / 6x

If the sum of my numerator and my denominator is 44, then:

5x + 6x = 44

11x = 44

x = 4

fraction = 5x / 6x = 20/24

The final statement says that the sum of the digits in the denominator is 6.

2 + 4 = 6

Hence, the fraction is 20/24.

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yes, for your x to be positive and to make it remain on the left hand side you actually have to add 4x to both side to eliminate x from the right hand side.

Answer:

it's b

Step-by-step explanation:

The approximate volume of the tank is 15714 cubic centimeters.

The volume of a cylinder is the amount of substance that can fill the entire dimension of the cylinder. It can be determined by:

volume of a cylinder = \(\pi\) r^2 h

where r is the radius of the cylinder, and h is the height.

Considering the fish tank,

height = 50 cm

radius = 10 cm

So that,

volume of the cylindrical fish tank =  \(\pi\) r^2 h

                          = 22/7 * 10^2 * 50

                          = 22/7 * 100 * 50

volume of the cylindrical tank = 15714.286

Thus the approximate volume of the fish tank is 15714 cubic centimeters.

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Mother spent (4r - 8) dollars more on cherries than did the father.

An expression using numbers and related operations is called a numerical expression.

According to the question, a pound of cherries costs $4.

Mom purchased r pounds.

The price of the cherry is calculated as follows: 4r = weight x $/lb.

Father purchased 2 pounds, thus the price of the cherries is 4 (2), or $8.

We remove the smaller value from the higher value, which is 4r - 8, where r must be more than two. Given that the mother spent more money on cherries than the father, the mother's cost of cherries is a greater value.

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We are given the following equation

We are asked to solve the equation for y.

Solving for y means that we have to separate the variable y.

Step 1:

Subtract 3x from both sides of the equation

The closed formula of h(t) and f(t) for

h(0)=f(0)=100b => h(t) = 100(2t+1), f(t) = 100(2t-1) ,

h(0)=200, f(0)=100 => h(t) = 200(2t+1), f(t) = 100(2t-1)

h(0)=600, f(0)=500 =>h(t) = 300 + 200(2t+\((-1)^{t}\)), f(t) = 200 - 100\((-1)^{t}\)

The recursive equations for the given two interacting population of hares and foxes are

h(t+1)=4h(t)-2f(t)

f(h+1)=h(t)+f(t)

for the given initial population in parts from a to c we need to create a close formula for h(t) and f(t)

h(t) = 100(2t+1)

f(t) = 100(2t-1)

h(t) = 200(2t+1)

f(t) = 100(2t-1)

h(t) = 300 + 200(2t+\((-1)^{t}\))

f(t) = 200 - 100\((-1)^{t}\)

The closed formula of h(t) and f(t) for

h(0)=f(0)=100b => h(t) = 100(2t+1), f(t) = 100(2t-1) ,

h(0)=200, f(0)=100 => h(t) = 200(2t+1), f(t) = 100(2t-1)

h(0)=600, f(0)=500 =>h(t) = 300 + 200(2t+\((-1)^{t}\)), f(t) = 200 - 100\((-1)^{t}\)

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Answer:

\(t^{3}\)

Step-by-step explanation:

cubed means to the power of 3

Answer:

140

Step-by-step explanation:

5%/100 = 7/?

7 times 100 = 700

700 divided by 5 = 140 coins

To calculate marginal PMF (Probability Mass Function), you need to follow these steps:determine the joint PMF of the two random variables X and Y, find the marginal PMF of X,and Y and finally calculate the marginal probabilities

1. First, determine the joint PMF of the two random variables X and Y. This can be done by multiplying the probabilities of the two variables for each possible outcome.
2. Next, to find the marginal PMF of X, you need to sum the joint PMF over all possible values of Y. This can be done using the formula: P(X=x) = ∑ P(X=x, Y=y).
3. Similarly, to find the marginal PMF of Y, you need to sum the joint PMF over all possible values of X. This can be done using the formula: P(Y=y) = ∑ P(X=x, Y=y).
4. Finally, you can use the marginal PMFs to calculate the marginal probabilities of each outcome for X and Y.

So, the marginal PMF can be calculated by summing the joint PMF over all possible values of the other variable.

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Answer:

continuous, continuous

Step-by-step explanation:

The percent yield is calculated as the ratio of the actual yield to the theoretical yield, multiplied by 100.

Percent yield is a measure of how efficient a chemical reaction or process is in producing the desired product.

The formula for percent yield is:

Percent Yield = (Actual Yield / Theoretical Yield) * 100

The actual yield is the amount of product obtained from the reaction or process, typically measured in grams or moles. It represents the actual amount of product obtained in the laboratory.

The theoretical yield, on the other hand, is the maximum amount of product that can be obtained based on stoichiometry and other factors. It is calculated using balanced chemical equations and the starting amounts of reactants.

By dividing the actual yield by the theoretical yield and multiplying by 100, we get the percent yield, which is expressed as a percentage.

This value provides insight into the efficiency of the reaction or process, with a higher percent yield indicating a more efficient conversion of reactants into products.

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Answer:

Our calculator limits your interest deduction to the interest payment that would be paid on a $1,000,000 mortgage. Interest rate: Annual interest rate for this

Step-by-step explanation:

Answer:

c

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how are you

Answer:

Step-by-step explanation:

The answer is 120.3676. i assume you are converting between grams MgSO4 and mole. You can view more details on each measurement unit: molecular weight of MgSO4

Answer:

B. -500

Step-by-step explanation:

\( \dfrac{(2a^4)^2}{a^0a^5} = \)

\( = \dfrac{2^2a^8}{a^5} \)

\( = 4a^3 \)

\( = 4(-5)^3 \)

\( = 4(-125) \)

\( = -500 \)

"Expression for area of the playground in rectangle shape in square feet is A(x) = x(400 - 2x)."

As given in the question,

Length of available fencing = 400 feet

perpendicular sides (breadth) = x feet

length of playground parallel to building = l

By formula perimeter of rectangle = 2 (length + breadth)

Perimeter of playground (rectangle) = ( l + 2x) (length is taken only once because we have school building on one side)

400 = (l + 2x)

l = 400 - 2x    

Area of rectangle = length · breadth

Area of rectangle = (400 -2x)x

                             =x (400 - 2x)

Therefore expression for area of playground in rectangle shape is option "a" i.e. a. A (x)= x (400 - 2x)

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After factorizing the expression 72a⁹b³-18a⁷b⁵completely we get the value of a and b will be ±1 and ±2.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that,

⇒72a⁹b³-18a⁷b⁵=0  ------(1)

We have to factor in the expression,

⇒72a⁹b³-18a⁷b⁵=0

Take 18a⁷b³ as common,

⇒18a⁷b³(4a²-a²b²)=0

⇒18a⁷b³=0

⇒(4a²-a²b²)=0

⇒4a² = a²b²

⇒b²=4

⇒b=±2

Substitute the value of b in equation 1 we get,

72a⁹b³-18a⁷b⁵=0  

72a⁹(2)³-18a⁷(2)⁵=0

576a⁹-576a⁷=0

a²=1

a=±1

Thus, after factorizing the expression 72a⁹b³-18a⁷b⁵completely we get the value of a and b will be ±1 and ±2.

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Answer:

The line that represents a proportional relationship is y3 which is letter C in the Cartesian Plane

Explanation:

The line that goes through the origin of where x-axis and y-axis meet or intersect at the same point is called a proportional relationship

Answer:

Answer: X=12

Explanation: 180-72= 108. 108/9 = 12

Step-by-step explanation: