answer this question

The value of probability to get the first letter will be always be, 1 / 26.

Given that;

A computer randomly selects a letter from the alphabet.

Now, The probability the computer produces the first letter of your first name :

Here, the required outcome is getting the first letter of your first name.

Probability = No. of required outcomes / total no. of outcomes.

For example, The name Alex Davis has the first letter of the fist name as alphabet 'A'.

Hence, Probability = 1 / 26

Similarly, for any first name there is going to be any one alphabet from the 26 alphabets, thus the probability to get the first letter will be always be, 1 / 26.

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The income elasticity of demand is positive, implying that chocolate is a normal good = 0.037

The demand function, Q = 54−5P + 4PA + 0.1Y.

Where Q is the quantity of chocolate demanded, P is the price of chocolate, PA is the price of an apple, and Y is income.

(i) The own-price elasticity of demand for chocolate, we first need to find the expression for it.

The own-price elasticity of demand can be expressed as:

Own-price elasticity of demand = (Percentage change in quantity demanded) / (Percentage change in price)Or,E

P = (ΔQ / Q) / (ΔP / P)E P = dQ / dP * P / Q

Let's calculate the own-price elasticity of demand:

EP= dQ / dP * P / Q= (-5) / (54 - 5P + 4PA + 0.1Y) * 3 / 30

= -0.1667

So, the own-price elasticity of demand for chocolate is -0.1667.

(ii) The cross-price elasticity of demand, we must first determine the expression for it.

The cross-price elasticity of demand can be expressed as:

Cross-price elasticity of demand

= (Percentage change in quantity demanded of chocolate) / (Percentage change in price of apples) Or, E

PA = (ΔQ / Q) / (ΔPA / PA)E PA = dQ / dPA * PA / Q

Let's calculate the cross-price elasticity of demand:

EP = dQ / dPA * PA / Q= (4) / (54 - 5P + 4PA + 0.1Y) * 2 / 30= 0.0296

So, the cross-price elasticity of demand is 0.0296.

(iii) The income elasticity of demand can be expressed as:

Income elasticity of demand = (Percentage change in quantity demanded) / (Percentage change in income)Or,E

Y = (ΔQ / Q) / (ΔY / Y)E Y = dQ / dY * Y / Q

Let's calculate the income elasticity of demand: EY = dQ / dY * Y / Q= (0.1) / (54 - 5P + 4PA + 0.1Y) * 100 / 30

= 0.037

The own-price elasticity of demand is negative, meaning that the quantity demanded of chocolate decreases when the price of chocolate increases.

The cross-price elasticity of demand is positive, indicating that chocolate and apples are substitute goods.

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Answer:

8 nickels and 18 dimes

Step-by-step explanation:

Make a system of equations:

n + d = 26

5n +10d = 220

Solve by elimination by multiplying the top equation by -5. This gives you:

-5n -5d = -130

5n +10d = 220

Then solve to get 5d= 90, then d= 18.

Then plug 18 for d in the equation n + d= 26, so n + 18= 26

n= 8

Step-by-step explanation:

Hey there!!

Just simply work with it.

We know that we have to use one point formula to find the equation of a st.line passing through point and slope is given.

So, just do accordingly.

The point is (2,-6) and slope is -1.

\((y - y1) = m(x - x1)\)

Where, "m" is a slope.

Put all values.

\((y + 6) = - 1(x - 2)\)

Simplify them to get answer.

\((y + 6) = - x + 2\)

\(y = - x - 4\)

Therefore the equation is y= -x-4 OR can be written as x+y+4=0.

Hope it helps....

Answer:

+ 7 d - 7

7 d2 + d + 1

Step-by-step explanation:

+ 7 d - 7

7 d2 + d + 1

There cannot exist two distinct input values that map to the same output value.

Therefore, the function f(x) is one-to-one.

Given a function f:[0, [infinity]) → R defined as f(x) = -1/2 x + 4.i) State the domain and the range of the function:

The domain of a function is the set of all possible input values, and the range is the set of all possible output values.

Here, we can see that the function is defined from 0 to infinity, which means the domain is [0, infinity)

.Now, to determine the range, we need to consider the output values that can be obtained from the function.

The function is a linear function with a negative slope, which means it decreases as x increases.

Also, we can see that the y-intercept is 4. So, the range of the function is (-infinity, 4].

ii) Determine whether f(x) is one-to one function:

To determine whether a function is one-to-one, we need to check whether each input value maps to a unique output value or not. In other words, if x1 ≠ x2, then f(x1) ≠ f(x2).

Let's assume that there exist two input values x1 and x2 such that x1 ≠ x2 and f(x1) = f(x2).

Then, we have:-

1/2 x1 + 4 = -1/2 x2 + 4

Multiplying both sides by -2, we get:

x2 - x1 = 0x2 = x1

This contradicts our assumption that x1 ≠ x2.

Hence, there cannot exist two distinct input values that map to the same output value.

Therefore, the function f(x) is one-to-one.

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Answer:

D

Step-by-step explanation:

using Sohcahtoa we know that we can only use Soh (since we have the opposite,16 and the hypotenuse, 20)

D is the only one that uses the correct equation of S = o/h

(this explanation isn't the best so please search up Sohcahtoa if it doesn't make sense)

Answer:

b - 7

Step-by-step explanation:

Difference means to subtract.

Whatever comes after "difference of" must stay in that order.

 Ex: difference of 7 and b would look like 7 - b.

The age of the tree after simplification of \(11^{2} +6(3-4)\) comes out to be 115 years old.

Given the age of the tree is \(11^{2} +6(3-4)\).

We are required to find the age of the tree after solving the expression.

Expression is combination of numbers,symbols, fraction, coefficients, determinants,indeterminants which is mostly not found in equal to form.

It shows some relationship between variables.

To solve the expression \(11^{2} +6(3-4)\) first we have to remove or solve the brackets which can be solved by the subtraction inside the brackets.

=\(11^{2}\)+6(-1)

Now find the square of 11.

=121-6

=115

Hence the age of the tree after simplification of \(11^{2} +6(3-4)\) comes out to be 115 years old.

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The equations, y=5x, b = 1/2 a, m=5n are direct variations.

A sort of proportionality known as "direct variation" occurs when one quantity directly changes in response to a change in another quantity. This suggests that if one quantity increases, the other quantity will also increase proportionately. Similar to the last example, if one quantity declines, the other amount also declines. The link between direct variation and the graph will be linear, resulting in a straight line.

We know that any equation, which can be expressed in the form of y=kx, can be called a direct variation.

y = 5x is in the form of y = kx, where k =5, hence this is a direct variation

y = 2x + 1 is not in the form of y = kx, hence this is not a direct variation

xy = 3 is not in the form of y = kx, hence this is not a direct variation

b = 1/2 a is in the form of y = kx, where k =1/2, hence this is a direct variation

y = 2/x is not in the form of y = kx, hence this is not a direct variation

m = 5n is in the form of y = kx, where k =5, hence this is a direct variation

Thus, y=5x, b = 1/2 a, m=5n are direct variation

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Answer:

c

Step-by-step explanation:

The angle x in the diagram is 98 degrees.

When parallel lines are cut by a transversal line, angle relationships are formed such as corresponding angles, alternate interior angle, alternate exterior angles, vertically opposite angles, same side interior angles etc.

Therefore, let's find the angle of x using the angle relationships as follows:

The size of the angle x can be found as follows:

82 + x = 180(same side interior angles)

Same side interior angles are supplementary.

Hence,

82 + x = 180

x = 180 - 82

x = 98 degrees

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Answer:

Each movie costs $15.05

Step-by-step explanation:

The price that was paid was $45.15

We know that there were 3 movies brought at the same prices.

We want to know how much each movie costs.

This is a simple division problem.

This is because the keywords "same" and also "each"

Do 45.15 divided by 3

45.15/3 = 15.05

Your answer is $15.05

You could verify by adding $15.05 three times.

$15.05 + $15.05 + $15.05 = $45.15

Therefore, Each movie costs $15.05

Answer:

x=46 degree

Step-by-step explanation:

32 +x=Angle ABC

32 + x =78 degree

x=78 - 32

x=46 degree

The mean is not used in the five number summary for data summarization. The five number summary is a descriptive statistics technique used to summarize a dataset.

It consists of five values: the minimum (smallest value), the first quartile (Q1), the median, the third quartile (Q3), and the maximum (largest value). These values provide information about the spread and central tendency of the data. The mean, also known as the average, is not included in the five number summary.

While the mean is a commonly used measure of central tendency, it is not part of the five number summary because it does not directly provide information about the spread of the data. Instead, the five number summary focuses on quartiles (which divide the data into four equal parts) and the extreme values. By using these five values, the summary provides a comprehensive snapshot of the dataset's distribution and helps identify potential outliers or skewness.

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The equation 2 = -x√(x + 2) - x has two potential solutions: x = -1 and x = -8. However, x = -8 does not satisfy the equation, so the set of all solutions is {x = -1}.

To find the set of solutions to the equation 2 = -x√(x + 2) - x, we can solve it algebraically.

Starting with the given equation, we can simplify it step by step:

2 = -x√(x + 2) - x

Adding x to both sides:

2 + x = -x√(x + 2)

Squaring both sides to eliminate the square root:

(2 + x)^2 = (-x√(x + 2))^2

Expanding and simplifying:

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

Simplifying further:

4 + 4x = x^3 + 2x^2

Rearranging terms:

x^3 + 2x^2 - 4x - 4 = 0

Factoring the equation:

(x + 1)(x^2 + x - 4) = 0

Setting each factor to zero:

x + 1 = 0 or x^2 + x - 4 = 0

Solving the first equation, we find x = -1.

For the second equation, we can use the quadratic formula:

x = (-1 ± √(1^2 - 4(1)(-4))) / (2(1))

x = (-1 ± √(1 + 16)) / 2

x = (-1 ± √17) / 2

However, when we substitute x = (-1 + √17) / 2 into the original equation, it does not satisfy the equation. Therefore, x = -8 is not a solution.

Hence, the set of all solutions to the equation is {x = -1}.

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The probability that 3 or more copies will be demanded in a particular day is 0.64.

What is probability?

Simply put, probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.

The probability for 3 or more copies to be demanded is the sum of all the probability distributions for 3 or more copies demanded per day.

This can be written in an equational form -

P(x) = 0.14 + 0.12 + 0.10 + 0.08 + 0.07 + 0.06 + 0.04 +0.03

P(x) = 0.64

Therefore, the probability is 0.64.

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Answer:

Finding the area of each parallelogram, applying the formula, it is found that the parallelogram D has an area of 60 square units

Step-by-step explanation:

Similarly to a rectangle, the area of a parallelogram is given by height multiplied by base, that is:

In item A, the height is of 15 units and the base is of 10 units, thus, the area, in square units, is of .

In item B, the height is of 6 units and the base is of 10.2 units, thus, the area, in square units, is of .

In item C, the height is of 15 units and the base is of 15 units, thus, the area, in square units, is of .

In item D, the height is of 10 units and the base is of 6 units, thus, the area, in square units, is of , which means that this is the correct option.

Answer:

7

Step-by-step explanation:

\(f(4)=4m+c=11 \\ \\ f(5)=5m+c=13\)

Subtracting the equations yields that m=2, and thus c=3.

\(\implies f(2)=2(2)+3=7\)

Answer:

2^5

Step-by-step explanation:

The price at which the total quantity supplied is 250 is $11.58.

In order to find the price at which the total quantity supplied is 250, we need to equate the total quantity supplied by both producers (Supply 1 and Supply 2) and solve for the price.

Supply 1: P = 6 + 0.7Q

Supply 2: P = 16 + 0.6Q

To find the equilibrium price, we set the total quantity supplied equal to 250:

0.7Q + 0.6Q = 250

1.3Q = 250

Q = 250 / 1.3 ≈ 192.31

Now that we have the quantity, we can substitute it back into either supply function to find the price. Let's use Supply 1:

P = 6 + 0.7Q

P = 6 + 0.7 * 192.31

P ≈ 6 + 134.62

P ≈ 140.62

Therefore, the price at which the total quantity supplied is 250 is approximately $11.58.

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You write f (-2) = 3 as (-2, 3) and f (5) = 7 as (5, 7).

The answer for the graph is \(\mathbf{\frac{4}{3}}\textbf{\textit{x}}\mathbf{+\frac{1}{3}}\).

If a function f is differentiable at a point a and f(a) is not equal to zero, then the absolute value function |f| is also differentiable at that point.

The proof involves considering two cases based on the sign of f(a) and showing that the limit of the difference quotient exists for |f| at point a in both cases. However, it is important to note that |f| is not differentiable at the point where f(a) equals zero.

To prove that if f is differentiable at a, then |f| is also differentiable at a, provided that f(a) ≠ 0, we need to show that the limit of the difference quotient exists for |f| at point a.

Let's consider the function g(x) = |x|. The absolute value function is defined as follows:

g(x) = {

x if x ≥ 0,

-x if x < 0.

Since f(a) ≠ 0, we can conclude that f(a) is either positive or negative. Let's consider two cases:

Case 1: f(a) > 0

In this case, we have g(f(a)) = f(a). Since f is differentiable at a, the limit of the difference quotient exists for f at point a:

lim (x→a) [(f(x) - f(a)) / (x - a)] = f'(a).

Taking the absolute value of both sides, we have:

lim (x→a) |(f(x) - f(a)) / (x - a)| = |f'(a)|.

Since |g(f(x)) - g(f(a))| / |x - a| = |(f(x) - f(a)) / (x - a)| for f(a) > 0, the limit on the left-hand side is equal to the limit on the right-hand side, which means |f| is differentiable at a when f(a) > 0.

Case 2: f(a) < 0

In this case, we have g(f(a)) = -f(a). Similarly, we can use the same reasoning as in Case 1 and conclude that |f| is differentiable at a when f(a) < 0.

Since we have covered both cases, we can conclude that if f is differentiable at a and f(a) ≠ 0, then |f| is also differentiable at a.

Note: It's worth mentioning that at the point where f(a) = 0, |f| is not differentiable. The proof above is valid when f(a) ≠ 0.

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Answer : The probability that a randomly selected teacher earns more than $60,000 is 0.039.

Explanation :

Given data: The average annual salary for all U.S. teachers is $47,750 and standard deviation is $5680.  Now we need to find the following probabilities:

1. The probability that a randomly selected teacher earns less than $42,000.

2. The probability that a randomly selected teacher earns between $40,000 and $50,000.

3. The probability that a randomly selected teacher earns at least $52,000.

4. The probability that a randomly selected teacher earns more than $60,000.

We can find these probabilities by performing the following steps:

Step 1: Press the STAT button from the calculator.

Step 2: Now choose the option “2: normal cdf(” to compute probabilities for normal distribution.

Step 3: For the first probability, we need to find the area to the left of $42,000.

To do that, enter the following values: normal cdf(-10^99, 42000, 47750, 5680)

The above command will give the probability that a randomly selected teacher earns less than $42,000.

We get 0.133 for this probability. Therefore, the probability that a randomly selected teacher earns less than $42,000 is 0.133.

Step 4: For the second probability, we need to find the area between $40,000 and $50,000. To do that, enter the following values: normal cdf(40000, 50000, 47750, 5680) .The above command will give the probability that a randomly selected teacher earns between $40,000 and $50,000. We get 0.457 for this probability.

Therefore, the probability that a randomly selected teacher earns between $40,000 and $50,000 is 0.457.

Step 5: For the third probability, we need to find the area to the right of $52,000. To do that, enter the following values: normalcdf(52000, 10^99, 47750, 5680)The above command will give the probability that a randomly selected teacher earns at least $52,000. We get 0.246 for this probability. Therefore, the probability that a randomly selected teacher earns at least $52,000 is 0.246.

Step 6: For the fourth probability, we need to find the area to the right of $60,000. To do that, enter the following values: normalcdf(60000, 10^99, 47750, 5680)The above command will give the probability that a randomly selected teacher earns more than $60,000. We get 0.039 for this probability. Therefore, the probability that a randomly selected teacher earns more than $60,000 is 0.039.

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Answer: 14.13

Step-by-step explanation:

3.14 x Radius

The radius is half of the diameter which is  4.5

the Equation is 3.14 x 4.5=14.13

The amount in the account after 10 years, with a $100,000 initial deposit and an annual interest rate of 2% compounded annually, is $121,899.44.

To calculate the amount in the account after a certain number of years with compound interest, we can use the formula:

A =\(P(1 + \frac{r}{n})^{nt}\)

Where:

P is the amount in the account after n years,

P₀ is the initial deposit,

r is the annual interest rate (as a decimal),

n is the number of times interest is compounded per year,

t is the number of years.

In this case, the initial deposit is $100,000, the annual interest rate is 2% (or 0.02), and interest is compounded annually (n = 1). We want to find the amount after 10 years (t = 10).

Using the formula:

P = 100,000\((1 + 0.02/1)^(1*10)\)

 ≈ 100,000\((1.02)^10\)

 ≈ 100,000(1.2189944)

 ≈ $121,899.44

Therefore, the amount in the account after 10 years will be approximately $121,899.44.

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Step-by-step explanation:

2x-6: 6x-4

Use any value to represent x

Let's use 1

2(1)-6: 6(1)-4

2-6 : 6-4

-4 : 2

Write in simplest form by dividing by 2

-2:1

Now do the same in all the answers above, use 1 for the value of x

1. - 2:1 is equivalent

2. 1-3 : 3(1)-2 = - 2:1 Equivalent

3. 3(1) : 1 = 3 :1 not equivalent

4. 4(1) - 12 : 12(1) - 8 = - 8 : 4 (

Simplify by dividing by 4, you get - 2 :1 equivalent

5. 1-1 : 1 - 2 = 0 : - 1 not equivalent

Step-by-step explanation:

3/4÷1/5

15/20÷4/20

we flip the second fraction and change the ÷ into ×

15/20×20/4=300/80

and now you can simplify this fraction.

Step-by-step explanation:

3/4 / 1/5

3/4 x 5/1

=15/4

Answer:

m=1/7x

Step-by-step explanation:

Answer:

\( slope= \frac{1}{7} \)

Step-by-step explanation:

\((3 \: \: \: \: \: \: \: 2) = > (x1 \: \: \: \: \: \: \: x2)\\ (10 \: \: \: \: 3) = > (y1 \: \: \: \: \: \: \: y2)\)

\(slope \\ = \frac{y1 - y2}{x1 - x2} \\ = \frac{2 - 3}{3 - 10} \\ = \frac{ - 1}{ - 7} \\ = \frac{1}{7} \)

hope this helps

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