How do I do this one and what are the answers, please and thank youu!

Answer:

I don't think this question is phrased correctly. The lesser number is the lesser number...  I think this is asking you to find each of the numbers, so I will do that.

Greater number: -19

Lesser number: -28

Step-by-step explanation:

If the greater number minus the lesser number is 9, the greater number is 9 more than the lesser number. I'll use algebra to solve this problem.

Lets set the lesser number as the variable x.

lesser number = x

Because the greater number is 9 more than the lesser number, the greater number is:

x+9

2x+9 = -47

Subtract 9 on both sides to isolate the variable.

2x + 9 - 9 = -47 - 9

2x = -56

x = -28

Because the greater number is 9 greater than the lesser number, add 9 to x to get the greater number.

-28 + 9 = -19

9514 1404 393

Answer:

  M = 141°, N = 39°

Step-by-step explanation:

Supplementary angles have a total measure of 180°, so ...

  M + N = 180

  (6x +3) +(2x -7) = 180

  8x = 184 . . . . . add 4, simplify

  x = 23 . . . . . . . divide by 8

∠M = 6·23 +3 = 141°

∠N = 2·23 -7 = 39°

Let x = the number of 5¢ fare increases

Let y = money the company gets

Equation: y = (360 - 20x) (0.50 + 0.05x)

Solve for x when y = 196

196 = 180 + 18x - 10x - x^2

x^2 - 8x + 16 = 0

Factor to solve for x

(x - 4)^2 = 0

x = 4

Remember what x means

Total fare = 0.50 + 0.05x = 0.50 + 0.20 = 0.70

Total fare = 70¢

The term that describes an event that increases the likelihood of a response being repeated is known as reinforcement.

Reinforcement can be defined as any consequence that strengthens or increases the probability of a behavior occurring again in the future. This can include positive reinforcement, which involves adding a desirable consequence after a behavior, or negative reinforcement, which involves removing an aversive consequence after a behavior. Both types of reinforcement have been shown to be effective in increasing the likelihood of a behavior being repeated.

Overall, understanding the concept of reinforcement is essential in the field of psychology, particularly in the areas of behaviorism and behavior modification. By providing positive consequences after desired behaviors, individuals can be motivated to continue engaging in those behaviors, which can lead to long-term positive changes. Reinforcement can also be used to shape new behaviors or replace unwanted behaviors with more desirable ones.

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(a) The value of C for joint density of x and y  is 1/4

(b) The density function of X is \(\frac{e^{-x} }{4}\)

(c) The density function of Y is \(\frac{1}{2}y^{2}e^{-y}\)

(d) The value of E[X] is -1.

(e) The value of E[Y] is 3.

A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

The function is f(x, y) = c(y - x) * e ^ (- y) - y < x < y, 0 < y < ∞

The joint density of X and Y is,

f(x,y)=\ matrix c(y - x) * e ^ (- y) - y < x < y , 0<y< infty \\ 0 matrix

Otherwise

The value of C is,

e ^ (- y) * (integrate (y - x) dx from x = - y to y) dy from y = 0 to ∞ = 1*int y=0 ^ infty e^ -y (xy - (x ^ 2)/2) x=-y ^ y dy=1

c = 1/ 4

(a) The value of C for the function is 1/4

(b) The density function of X is \(\frac{e^{-x} }{4}\)

(c) The density function of Y is \(\frac{1}{2}y^{2}e^{-y}\)

(d) The value of E[X] is -1.

(e) The value of E[Y] is 3.

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The p-value for testing whether the mean height is greater than 64 inches is (d) (1 - 0.9999).

To find the p-value, we can use a one-sample t-test. The test statistic can be calculated as t = (sample mean - population means) / (sample standard deviation / √sample size). In this case, the sample mean is 64.5 inches, the population mean is 64 inches, the sample standard deviation is 0.9, and the sample size is 48. Plugging these values into the formula, we get t = (64.5 - 64) / (0.9 / √48) ≈ 2.042.

The p-value can then be obtained by comparing the t-value to the t-distribution with degrees of freedom equal to the sample size minus 1 (48 - 1 = 47). Since we are testing whether the mean height might be greater than 64 inches, we are interested in the right tail of the t-distribution. The p-value can be found as (1 - the cumulative probability of t-value).

Using statistical software or tables, we can find the cumulative probability for a t-value of approximately 2.042 and degrees of freedom of 47, which is very close to 0.0001. Therefore, the p-value is (d) (1 - 0.9999), which is approximately 0.0001.

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By setting the guaranteed time to 0.25, it ensures that the percentage of customers receiving coupons will be below 4%, thus meeting the requirement.

To limit the percentage of customers receiving coupons to no more than 1 out of every 25 customers on average, the owner should change the guaranteed time to option d) 0.25.

The percentage of customers receiving coupons can be calculated by dividing the number of customers receiving coupons by the total number of customers. If the owner wants this percentage to be no more than 1 out of every 25 customers, it means that the percentage should be less than or equal to 4%.

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The length of B’C’ for the triangle A’B’C' is 7.5 cm if a dilation maps triangle ABC onto A’B’C'.

A triangle is a three-sided polygon that has three angles, three vertices, and three sides. It is a basic geometric shape that is often studied in mathematics and geometry. Triangles come in different shapes and sizes, but the sum of their interior angles always adds up to 180 degrees. Triangles can be classified based on their sides and angles, such as equilateral, isosceles, scalene, acute, right, or obtuse.

Here,

We can use the property that the ratio of corresponding sides of similar triangles is equal to the scale factor of dilation. In this case, we have:

AC/A'C' = BC/B'C'

Substituting the given values:

24/6 = 30/B'C'

Simplifying:

4 = 30/B'C'

Multiplying both sides by B'C':

4B'C' = 30

Dividing both sides by 4:

B'C' = 7.5

Therefore, B'C' is 7.5 cm.

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Complete question:

A dilation maps triangle ABC onto triangle A’B’C if AC = 24 cm A’C =6 cm and BC= 30 cm then B’C’ equals?

Answer:

13

Step-by-step explanation:

Please mark brainliest

Answer:

A  54°

Step-by-step explanation:

Sorry if its wrong <3

a) X follows a binomial distribution with n=5 and p=0.3. Therefore, the probability law of X is:

P(X=k) = (5 choose k) * 0.3^k * 0.7^(5-k), for k = 0,1,2,3,4,5

b) The mean of X is given by μ = np = 50.3 = 1.5

The variance of X is given by σ^2 = np(1-p) = 50.3*(1-0.3) = 1.05

The standard deviation of X is σ = sqrt(σ^2) ≈ 1.024

c) To find the probability that exactly 2 parts are defective, we use the probability law of X:

P(X=2) = (5 choose 2) * 0.3^2 * 0.7^3 ≈ 0.3087

d) To find the probability that there is at most one defective part, we sum the probabilities of having 0 or 1 defective parts:

P(X ≤ 1) = P(X=0) + P(X=1) = (5 choose 0) * 0.3^0 * 0.7^5 + (5 choose 1) * 0.3^1 * 0.7^4 ≈ 0.1681

e) The mode is the most frequent value of X. In this case, we can see that P(X=1) and P(X=2) are both greater than the other probabilities, so the mode is either 1 or 2. To determine which one, we need to compare the probabilities:

P(X=1) = (5 choose 1) * 0.3^1 * 0.7^4 ≈ 0.3602

P(X=2) = (5 choose 2) * 0.3^2 * 0.7^3 ≈ 0.3087

Since P(X=1) > P(X=2), the mode is 1, and the corresponding probability is approximately 0.3602.

After the second adjustment, the proportion of defective parts is p=0.05.

a) The probability of not finding defective parts in a batch of 100 pieces is:

P(X=0) = (100 choose 0) * 0.05^0 * 0.95^100 ≈ 0.5987

b) The probability of getting exactly two defected parts is:

P(X=2) = (100 choose 2) * 0.05^2 * 0.95^98 ≈ 0.2647

c) To calculate the probability of obtaining less than three defective parts, we can use the complement rule and find the probability of having 3 or more defective parts, and then subtract from 1:

P(X < 3) = 1 - P(X ≥ 3)

= 1 - [P(X=3) + P(X=4) + P(X=5)]

= 1 - [(100 choose 3) * 0.05^3 * 0.95^97

+ (100 choose 4) * 0.05^4 * 0.95^96

+ (100 choose 5) * 0.05^5 * 0.95^95]

≈ 0.1846

d) The mode is the most frequent value of X. Since the probability law is not symmetric, there may be multiple modes. To determine the modes, we can calculate the probabilities for each value of X and find the maximum values:

P(X=0) ≈ 0.5987

P(X=1) ≈ 0.3151

P(X=2) ≈ 0.0676

P(X=3) ≈ 0.0125

P(X=4) ≈ 0.0019

P(X=5) ≈ 0.0002

Therefore, X=0 is the mode with the highest probability, which is approximately 0.5987.

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The fraction of the money that Sam receives is \(\frac{7}{16}\) of the money they share.

To solve this problem, we need to first understand what the ratio 7:9 means. It means that for every 7 parts that Sam receives, Adam receives 9 parts.
Let's say the sum of money they are sharing is $100. To find out how much Sam receives, we need to divide the total amount into 16 parts (7 + 9).
Each part would then be worth $6.25 ($100 ÷ 16).
To find out how much Sam receives, we need to multiply the number of parts he receives by the value of each part.
Sam receives 7 parts out of 16, so his share would be 7 x $6.25 = $43.75.
To express this as a fraction, we can put Sam's share over the total amount:
\(\frac{43.75}{100}\)
We can simplify this fraction by dividing both the numerator and denominator by 25:
\(\frac{1.75}{4}\)
Therefore, the fraction of the money that Sam receives is \(\frac{1.75}{4}\) or \(\frac{7}{16}\).
In summary, Sam receives \(\frac{7}{16}\) of the money they share, which is equivalent to $43.75 if the total amount they are sharing is $100.

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Since 50 is an even number, we know that x will be even if y is even (50 times an even number is still even) and odd if y is odd (50 times an odd number is odd). Therefore, the only answer choice that must be odd is x+y.

Given that x and y are integers and x = 50y + 69, let's determine which of the following expressions must be odd.

1. xy: Since x is odd (50y + 69), when it is multiplied by any integer y, the result will always be odd. Therefore, xy must be odd.

2. x + y: If x is odd, adding it to an even integer (y) would result in an odd number. However, adding it to an odd integer (y) would result in an even number. Therefore, x + y does not necessarily have to be odd. xy: We can't determine if this is odd or even without knowing the values of x and y.
- x+y: This expression is always odd. To see why, consider two cases:

If x and y are both odd, then x+y is even+odd=odd.
If x and y are both even, then x+y is even+even=even.
If one of x and y is odd and the other is even, then x + y is odd + even =odd.

3. x+2y: We can't determine if this is odd or even without knowing the values of x and y.
3x-1: This expression will be odd if x is odd (3 times an odd number is odd) and even if x is even (3 times an even number is even).
3x+1: This expression will be odd if x is even (3 times an even number plus 1 is odd) and even if x is odd (3 times an odd number plus 1 is even).
x + 2y: Since x is odd and 2y is always even, their sum must be odd. Therefore, x + 2 y must be odd.

4. 3x - 1: This expression is odd, since 3x will always be odd (as x is odd) and subtracting 1 from an odd number results in an even number. Therefore, 3x - 1 does not necessarily have to be odd.

5. 3x + 1: This expression is odd, since 3x will always be odd (as x is odd) and adding 1 to an odd number results in an even number. Therefore, 3x + 1 must be odd.

In conclusion, the expressions that must be odd are xy, x + 2y, and 3x + 1.

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Answer is

0.8(2x-6)

Step-by-step explanation:

0.8x2x=1.6x

0.8x-6 = -4.8

Answer:

4:1

Step-by-step explanation:

The ratio at first would be 48:12, after this to simplify it we need to find the gcf (greatest/biggest common factor), which is 12. Dividing 48 by 12 gives us 4 and dividing 12 by 12 gives us 1, thus making the ratio 4:1

Answer:

A.

Step-by-step explanation:

Just find the lowest common multiple of 51 and 85.

51 = 3 * 17

85 = 5 * 17

3 * 5 * 17 = 255

The lowest common denominator for the fractions is 17.

The fractional bar is a horizontal bar that divides the numerator and denominator of every fraction into these two halves.

Given:

fraction = 8/51 and 19/ 85

Now, LCM of 51 and 85.

51 = 17 x 3

85= 17 x 5

So, the least common multiple is 17.

Hence, the lowest common denominator for the fractions is 17.

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There are 9,880 possible ways to award the gold, silver, and bronze medals to the top three runners in a group of 40 people.

In this scenario, we are trying to determine the number of ways that three runners can be chosen from a group of 40 people to receive gold, silver, and bronze medals. This is an example of a combination problem.

A combination is a way of selecting items from a larger set where the order in which they are selected does not matter. In this case, we are choosing three runners out of a group of 40, and the order in which they finish the race is not important. We just need to determine which three runners will receive the top three medals.

To calculate the number of possible combinations of three runners from a group of 40, we use the formula for combinations:

C(n, r) = n! / (r! * (n-r)!),

where n represents the total number of items and r is the number of items being selected. In this case, we have n = 40 and r = 3:

C(40, 3) = 40! / (3! * (40-3)!) = 403938 / (321) = 9880

Therefore, there are 9,880 possible ways to award the gold, silver, and bronze medals to the top three runners in a group of 40 people.

In summary, when we are selecting a group of items from a larger set and the order in which they are selected does not matter, we can use the combination formula to determine the number of possible combinations. In this particular scenario, we found that there are 9,880 possible combinations of three runners who could receive the gold, silver, and bronze medals in a group of 40 people.

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Answer:

The right triangle altitude theorem or geometric mean theorem is a result in elementary geometry that describes a relation between the lengths of the altitude on the hypotenuse in a right triangle and the two line segments it creates on the hypotenuse.

Step-by-step explanation:

Was definetly not copy and pasted from g.o.o.g.l.e. no siree

The answer is in the photo along with the work ;)

The solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

A balanced hanger is a mathematical equation that can be used to solve algebraic problems. It consists of a number of equal signs, with an equal number of symbols on each side.


In the case of the equation 48=mXmXmXmXmX, the number of symbols on each side is 6. This means that the equation is asking us to solve for the unknown value of m, which when multiplied by itself 6 times will give us the value of 48.

To solve this equation, we can use the distributive property to expand the equation. This property tells us that if we multiply a number by a sum of two or more numbers, we can break up that multiplication into several separate multiplications. For example, if we have 2(3+4), we can break it up into 2(3) + 2(4) and simplify it further to 6+8=14. In the case of our equation, we can break it up into 6 separate multiplications, mXmXmXmXmX.

Now, we can solve the equation using the inverse operation of multiplication, which is division. We can divide both sides of the equation by m and get 48/m=mXmXmXmXm. We can then divide both sides by the other m's and get 48/mXmXmXmX=m. Finally, we can divide both sides by the remaining m and get 48/mXmXmX=1. This means that m = the square root of 48, or 6.98.

Therefore, the solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

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The solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

A balanced hanger is a mathematical equation that can be used to solve algebraic problems. It consists of a number of equal signs, with an equal number of symbols on each side.


In the case of the equation 48=mXmXmXmXmX, the number of symbols on each side is 6. This means that the equation is asking us to solve for the unknown value of m, which when multiplied by itself 6 times will give us the value of 48.

To solve this equation, we can use the distributive property to expand the equation. This property tells us that if we multiply a number by a sum of two or more numbers, we can break up that multiplication into several separate multiplications. For example, if we have 2(3+4), we can break it up into 2(3) + 2(4) and simplify it further to 6+8=14. In the case of our equation, we can break it up into 6 separate multiplications, mXmXmXmXmX.

Now, we can solve the equation using the inverse operation of multiplication, which is division. We can divide both sides of the equation by m and get 48/m=mXmXmXmXm. We can then divide both sides by the other m's and get 48/mXmXmXmX=m. Finally, we can divide both sides by the remaining m and get 48/mXmXmX=1. This means that m = the square root of 48, or 6.98.

Therefore, the solution to this equation is m = 6.98. This means that if we multiply 6.98 by itself 6 times, we will get the value of 48.

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Complete questions as follows-

Here is a balanced hanger. 48=mXmXmXm solve the equation.

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees is 25.

We have,

3.

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees.

= 25

We add up all the dots above the numbers between 98.5 and 98.7.

We will not include the dots above 98.5 and 98.7.

4.

The dot plot of the sample mean body temperature for 100 different random samples of size 10 from a population with a mean temperature of 98.6 degrees shows that the majority of the sample means are close to 98.6, and there are very few samples means that exceed 98.6, then it would be surprising to obtain a sample mean of 98.8 or greater from a different random sample.

Thus,

The number of samples that were greater than 98.5 degrees and less than 98.7 degrees is 25.

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Answer:

a 0,1

b 1,0

Step-by-step explanation:

i think it is right but not sure

j=2

Step-by-step explanation:

take the second numbers in each parentheses and subtract them. put this answer on top of a fraction

(j,3) (8,2)

2-3 = -1

take the first numbers and subtract. put this answer at the bottom of fraction

8 - J = 6

j = 2

answer should equal -1/6

the formula for a slope is y2-y1/x2-x1

look at the points like this, and fill in the places with the numbers and j they give you

(X1,y1) (X2,y2)

Answer:

The standard deviation is equal to the square root of the variance, which is √(1/8) ≈ 0.353.

To find the variance and standard deviation of X with the given density function, we need to calculate the expected value (E(X)) and the expected value of X squared (E(X^2)). Then, we can use the formula Var(X) = E(X^2) - [E(X)]^2 to find the variance.

First, let's calculate E(X):

E(X) = ∫(x * f(x)) dx

     = ∫(x * 2(1 - x)) dx

     = 2∫(x - x^2) dx

     = 2[x^2/2 - x^3/3] + C

     = x^2 - (2/3)x^3 + C

Next, let's calculate E(X^2):

E(X^2) = ∫(x^2 * f(x)) dx

        = ∫(x^2 * 2(1 - x)) dx

        = 2∫(x^2 - x^3) dx

        = 2[x^3/3 - x^4/4] + C

        = (2/3)x^3 - (1/2)x^4 + C

Now, we can find the variance:

Var(X) = E(X^2) - [E(X)]^2

      = [(2/3)x^3 - (1/2)x^4 + C] - [x^2 - (2/3)x^3 + C]^2

      = [(2/3)x^3 - (1/2)x^4] - [x^2 - (2/3)x^3]^2

The standard deviation can be calculated as the square root of the variance.

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Complete Question

For a laboratory assignment, if the equipment is working, the density function of the observed outcome X is

f(x) = 2 ( 1 - x ), 0 < x < 1

0 otherwise

(1) Find the Variance and Standard deviation of X.

True. If v is an eigenvector corresponding to the eigenvalue λ, then multiplying v by a scalar c, denoted as cv, will also be an eigenvector corresponding to the same eigenvalue λ.

An eigenvector represents a direction in a vector space that remains unchanged, except for scaling, when multiplied by a specific matrix. The corresponding eigenvalue determines the magnitude of the scaling. When we multiply an eigenvector v by a scalar c, the direction of the vector remains the same, and the resulting vector cv is scaled by the same factor c.

Mathematically, if Av = λv, where A is a matrix, λ is an eigenvalue, and v is the corresponding eigenvector, then it follows that A(cv) = cAv = cλv = λ(cv). This equation shows that multiplying an eigenvector v by a scalar c preserves its status as an eigenvector, corresponding to the same eigenvalue λ.

In summary, if v is an eigenvector corresponding to λ, then multiplying it by a scalar c still results in an eigenvector corresponding to the same eigenvalue λ.

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Answer:

200

Step-by-step explanation:

you would need to do 6,000 times 2 to find out how much he will need to cover and 6,000 times 2=12000 so the answer is b 200

Answer:

ans is 11-21/10 sry I don't have calculator