gabelli partners is planning a major investment. the amount of profit x is uncertain but a probabilistic estimate gives the following distribution (in millions of dollars): profit 1 1.5 2 4 10 probability .1 .2 .4 ?? .1 a. find p (x

Answer: x = 3 or -13/3

Step-by-step explanation: if you sub in 3 for x, you'll get 9+2 =11, which is true. -13/3 is also correct since subbing it in will give you -13+2, which equals -11. The absolute value of -11 is 11. So both of them work

Answer:

B) -2t^2+3t+5

and

C) 4t-7

Answer:

5

Step-by-step explanation:

All you have to do is subtract Davids score and maria score.

Answer:

6

Step-by-step explanation:

david has 4 and maria has 10 and 10 - 4 = 6

Answer:

4,000,000

Step-by-step explanation:

We start by subtracting his salary (20k) from his annual income. That means he got 100,000 from selling homes.

So, what is 100,000 2.5% of?

I used the equation:

100,000 = .025x

with x being the value of all the homes.

Just divide and conquer, and you end up with a final answer of 4 Million

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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The correlation coefficient that indicates the strongest relation between two variables is option b. r=−.87. A correlation coefficient ranges from -1 to 1. Therefore, the answer is option b. r=−.87.

The absolute value of the correlation coefficient represents the strength of the relationship, while the sign indicates the direction of the relationship. In this case, the absolute value of -0.87 is larger than the other options, indicating a stronger relationship between the variables.

The correlation coefficient is a statistical measure that quantifies the relationship between two variables. It ranges from -1 to 1, where -1 represents a perfect negative correlation, 1 represents a perfect positive correlation, and 0 represents no correlation.

In this question, we are looking for the correlation coefficient that indicates the strongest relation between two variables. To determine the strength, we consider the absolute value of the correlation coefficient. The larger the absolute value, the stronger the relationship.

Option a has a correlation coefficient of -0.45, indicating a moderate negative relationship between the variables. Option c has a correlation coefficient of 0.69, indicating a moderately strong positive relationship. Option d has a correlation coefficient of 1.24, which is not possible as correlation coefficients must be between -1 and 1.

Option b, however, has a correlation coefficient of -0.87, which has the largest absolute value among the given options. This indicates a very strong negative relationship between the variables, making it the correct answer for the strongest relation.

Therefore, the answer is option b. r=−.87.

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Answer:

26

Step-by-step explanation:

w = 5 so 7w is 7 x 5 = 35 and x = 9 so it’s 35 - 9 which is 26

Answer:

Step-by-step explanation:

volume = ⅓×8×7×6 = 112 in³

Answer:

168

Step-by-step explanation:

Answer:

yes it does because men comes before women

Answer:

B:   7.07 units

Step-by-step explanation:

We see a radius of circle A labeled 3, so we know that the other radius of circle A that contains the side of the rectangle also measures 3 units. The side of the rectangle measures 2, so the part of the radius of circle A that is not part of the rectangle measures 1 unit. That is one leg of the right triangle.

Opposite sides of a rectangle are congruent, so the side of the rectangle opposite the side that measures 7 also measures 7. That is the other leg of the right triangle. Now we use the Pythagorean theorem to find AC which is the hypotenuse of the right triangle.

a² + b² = c²

1² + 7² = c²

1 + 49 = c²

c² = 50

c = √50

c = 7.07

Answer:

the answer is 2

Step-by-step explanation:

in simpelest form its 2

The system of linear equations are

Equation 1: 2 = a × 0 + b

Equation 2: 0 = a × (-4) + b

Equation 3: 5 = a × 6 + b

Equation 4: -1 = a × (-6) + b

The system of linear equations from the first table of values can be identified as:

Equation 1: 2 = a × 0 + b

Equation 2: 0 = a × (-4) + b

Equation 3: 5 = a × 6 + b

Equation 4: -1 = a × (-6) + b

Table 2:

The system of linear equations from the second table of values can be identified as:

Equation 1: 1 = a × 0 + b

Equation 2: 0 = a × (-2) + b

Equation 3: -1 = a × (-4) + b

Equation 4: 2 = a × 2 + b

In the equations, 'a' and 'b' represent the coefficients to be determined.

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Answer:

Circumcenter

Step-by-step explanation:

The three perpendicular bisectors of the sides of a triangle meet in a single point, called the circumcenter . A point where three or more lines intersect is called a point of concurrency. So, the circumcenter is the point of concurrency of perpendicular bisectors of a triangle.

Ace C.a.r.l.o.s. -The Kid Laroi

The volume of the solid is 603.19 cubic feet

The formula for the volume of a hemisphere is (2/3)πr³.

Since the radius of the hemisphere is not given,

Assume it to be the same as the radius of the cone, which is 6 feet.

So, the volume of the hemisphere is,

⇒ (2/3)π(6³) = 144π cubic feet

The formula for the volume of a cone is (1/3)πr²h,

where r is the radius and h is the height.

Put in the values we have, we get,

⇒ (1/3)π(6²)(12) = 144π/3

                        = 48π cubic feet

Find the total volume of the composite solid by adding the volumes of the hemisphere and the cone,

⇒ Total volume = Volume of hemisphere + Volume of cone

⇒ Total volume = 144π + 48π

⇒ Total volume = 192π cubic feet

Finally, rounding to the nearest hundredth,

The volume of the composite solid is 603.19 cubic feet.

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The correct null hypothesis in the given situation is:

(A) H0: p = 0.27; Ha: p > 0.27

Any variation between the selected attributes that you observe in a collection of data is thought to be the result of chance, according to the null hypothesis.

For instance, any discrepancy between the average profits in the data and zero is caused by chance if the expected earnings for the gambling game are actually equal to zero.

So, the population proportion serves as the parameter.

The American Academy of Periodontology found that 27% of US individuals admit to lying to their dentist about how frequently they floss their teeth.

So, the following is the null hypothesis:

H0: p = 0.27

Dr. Garcia, a periodontist, thinks that the percentage should be higher than 27% since he feels it is too low.

Consequently, the competing theory is:

H0: p > 0.27

Therefore, the correct null hypothesis in the given situation is:

(A) H0: p = 0.27; Ha: p > 0.27

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Complete question:

The American Academy of Periodontology released a survey, revealing that 27% of US adults admit they lie to their dentist about how often they floss their teeth. Periodontist Dr. Garcia believes that the percentage seems low, so he decides to conduct his own hypothesis test to determine the true proportion. What should he write as the null and alternative hypotheses for this situation?

Answer Options:

A: H0: p = 0.27; Ha: p > 0.27

B: H0: p = 0.27; Ha: p < 0.27

C: H0: p = 0.27; Ha: p ≠ 0.27

D: H0: μ = 0.27; Ha: μ > 0.27

E: H0: μ = 0.27; Ha: μ < 0.27

Answer:

4/p

Step-by-step explanation:

4/p=4overp

Answer:

24 or 25

Step-by-step explanation:

Uh I'd say 2*4*3.14=8*3.14=25.12 or if I just rounded pi to 3 it'd be 24

Answer:

8 cups = 4 Pints

Step-by-step explanation:

The solution to the given system of equations is x = 2, y = -1, and z = 1.

To solve the system of equations, we can use methods such as substitution or elimination. Here, we will use the method of elimination to find the values of x, y, and z.

First, let's eliminate the variable x by multiplying equation (1) by 2 and equation (3) by -1. This gives us:

2x + 4y - 2z = -6 (4)

-x + y - z = -4 (5)

Next, we can subtract equation (5) from equation (4) to eliminate the variable x:

5y - z = 2 (6)

Now, we have a system of two equations with two variables. Let's eliminate the variable z by multiplying equation (2) by 2 and equation (6) by 1. This gives us:

4x - 2y + 2z = 10 (7)

5y - z = 2 (8)

Adding equation (7) and equation (8), we can eliminate the variable z:

4x + 5y = 12 (9)

From equation (6), we can express z in terms of y:

z = 5y - 2 (10)

Now, we have a system of two equations with two variables again. Let's substitute equation (10) into equation (1):

x + 2y - (5y - 2) = -3

x - 3y + 2 = -3

x - 3y = -5 (11)

From equations (9) and (11), we can solve for x and y:

4x + 5y = 12 (9)

x - 3y = -5 (11)

By solving this system of equations, we find x = 2 and y = -1. Substituting these values into equation (10), we can solve for z:

z = 5(-1) - 2

z = -5 - 2

z = -7

Therefore, the solution to the given system of equations is x = 2, y = -1, and z = -7.

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Answer:

x=6

Step-by-step explanation:

19x - 4 = 110

19x = 114

Divide by 19:

x=6

Hope this helps !!!

Answer:

x = 6

Step-by-step explanation:

19x - 4 = 110 (Because of alternate exterior angles)

19x = 114

x = 6

Answer:

1023

Step-by-step explanation:

r = 12/3 = 48/12 = 4

The constant ratio is 4.

Method 1:

Write out the series and add the terms.

3 + 12 + 48 + 192 + 768 = 1023

Method 2:

Use the formula.

S_n = [a_1(1 - r^n)]/(1 - r)

S_5 = [3(1 - 4^5)]/(1 - 4)

S_5 = [3(1 - 1024)]/(-3)

S_5 = -(-1023)

S_5 = 1023

The set of natural numbers {1,2,3,4,...} and the set of positive even numbers {2, 4, 6, 8, . . .} are different because natural numbers include all positive integers, while even numbers only include those that are divisible by 2 with no remainder.

Two important sets of numbers are natural numbers and even numbers. The set of natural numbers consists of numbers that are not negative, beginning with 1 and continuing indefinitely with 2, 3, 4, and so on.

The set of even numbers, on the other hand, consists of numbers that are divisible by 2, beginning with 2, 4, 6, and so on.

Positive integers refer to natural numbers. Any integer greater than zero is a positive integer.

Zero is not a positive integer. Hence, the set of natural numbers consists of {1,2,3,4,…}

On the other hand, the set of even numbers consists of {2, 4, 6, 8, . . .}.

Therefore, {1,2,3,4,…} and {2, 4, 6, 8, . . .} are two different sets of numbers where one set is composed of positive integers (natural numbers) and the other is composed of positive even numbers.

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A symmetrical distribution of exam scores in a college course indicates that the student's scores are evenly distributed across the entire range of scores. This suggests that about an equal number of students had relatively high and relatively low scores.

Correct answer will be b) About an equal number of students had relatively high and relatively low scores.

And that there is no single group that overwhelmingly outperformed or underperformed the others. Furthermore, it indicates that there were a substantial number of students who achieved high scores, as well as a substantial number who achieved low scores.

This type of even distribution of scores is often seen when students are equally prepared, and when the exam is designed to be neither too difficult nor too simple.

In conclusion, a symmetrical distribution of exam scores suggests that the students were similarly prepared and that the exam was appropriately challenging.

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Answer:

Step-by-step explanation:

So in our case, let assume 'x' as a common factor.

Thus,

4x + 5x + 7x = 5600;

16x = 5600;

x = 5600/16 = 350.

So,

4x= 350*4 =1400;

5x= 350*5 = 1750; &

7x= 350*7 = 2450.

Your answer is, 5600 = 1400+1750+2450 which is in ratio of 4:5:7.

Answer:

C. Distributive Property; Commutative Property of Addition; Combine Like Terms.

Step-by-step explanation:

The procedure is described below:

1) \(-2\cdot (2\cdot x^{3}+4\cdot x^{2}-3)+5\cdot (x^{2}-2\cdot x -2)\)  Given.

2) \(-4\cdot x^{3}-8\cdot x^{2}+6 +5\cdot x^{2}-10\cdot x -10\)  Distributive Property.

3) \(-4\cdot x^{3}-8\cdot x^{2}+5\cdot x^{2}-10\cdot x + 6 - 10\) Commutative Property of Addition.

4) \(-4\cdot x^{3}-3\cdot x^{2}-10\cdot x -4\) Combine like terms.

Therefore, the correct answer is C.

Answer: C: Distributive Property; Commutative Property of Addition; Combine Like Terms

Step-by-step explanation: Hope that helped!

Answer:

8

Step-by-step explanation:

I belive what they mean is how many dots thier are i am not complety sure though but just by counting them up i came up with 8.

hope this helped