Find the missing length indicated. Pls show your work

Answer:

Below

Step-by-step explanation:

5% of 820= 41    would be one possible

The standard deviation of the outcome for the given bet is approximately $51.

To obtain this result, we can use the following formula for the standard deviation of a random variable with two possible outcomes (winning or losing in this case):SD = √(p(1-p)w² + p(1-p)l²),where SD is the standard deviation, p is the probability of winning (0.4 in this case), w is the amount won ($50 in this case), and l is the amount lost ($50 in this case).

Plugging in the values, we get:SD = √(0.4(1-0.4)(50²) + 0.6(1-0.6)(-50²))≈ $51

Therefore, the standard deviation of the outcome of the given bet is approximately $51.Explanation:In statistics, the standard deviation is a measure of how spread out the values in a data set are.

A higher standard deviation indicates that the values are more spread out, while a lower standard deviation indicates that the values are more clustered together.

In the context of this problem, we are asked to find the standard deviation of the outcome of a bet. The outcome can either be a win of $50 with a probability of 40% or a loss of $50 with a probability of 60%.

To find the standard deviation of this random variable, we can use the formula:SD = √(p(1-p)w² + p(1-p)l²),where SD is the standard deviation, p is the probability of winning, w is the amount won, and l is the amount lost.

Plugging in the values, we get:SD = √(0.4(1-0.4)(50²) + 0.6(1-0.6)(-50²))≈ $51Therefore, the standard deviation of the outcome of the given bet is approximately $51.

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Answer:

x=17

Step-by-step explanation:

x-9=8

add nine on both sides

x-9+9=8+9

the nines on the side with the x cancel each other

x=17

Answer:

3.1

Step-by-step explanation:

Using a system of equations, it is found that:

a) The equation 5x + 2y = 150 means that the cost of a purchase of x key chains and y wristbands is of $150. The coefficients 5 and 2 are, respectively, the prices of a key chain and of a wristbands.

b) The intercepts are given as follows:

c) The number of wristbands that can be ordered is of 30.

A system of equations is a set of equations in the context of a problem, and solving these equations, the numeric value of each variable in the context of the problem is found.

In this problem, the equation is given as follows:

5x + 2y = 150.

Considering the meaning of each variable, the coefficients are explained as follows:

The x-intercept of the equation is the value of x when y = 0, hence:

5x = 150

x = 150/5

x = 30.

The y-intercept of the equation is the value of y when x = 0, hence:

2y = 150

y = 150/2

y = 75.

Hence the graph of the function is the line connecting the points (30,0) and (0,75). This graph is only on the first quadrant, as the amounts are countable and cannot assume negative values.

The number of wristbands that is purchased when x = 18 is given as follows:

5(18) + 2y = 150

2y = 60

y = 60/2

y = 30.

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Answer:

yes

Step-by-step explanation:

if a even number can go into a even number a even number of times its a irrational number

Answer: no it is rational

Step-by-step explanation: A number is only irrational if it has endless decimals after it.

Given that James saw exactly one of these types of animal, the probability that he saw a crocodile is given as follows:

1/3.

The parameters that are needed to calculate a probability are listed as follows:

Then the probability is calculated as the division of the number of desired outcomes by the number of total outcomes.

The probability of seeing exactly one type of animal is given as follows:

2/5 x 1/6 + 3/5 x 2/9 = 1/15 + 6/45 = 3/45 + 6/45 = 9/45.

The probability of seeing exactly one type of animal and being a crocodile is given as follows:

2/5 x 1/6 = 1/15 = 3/45.

Hence the conditional probability is given as follow:

(3/45)/(9/45) = 3/9 = 1/3.

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If a hypothesis test leads to the rejection of the null hypothesis, a Type I error has been committed.

Type I error:

Rejecting the null hypothesis when it is in fact true is a Type I mistake. It entails drawing conclusions about outcomes that are statistically significant when, in fact, they were just the consequence of chance or unrelated causes.

The significance level you select (alpha or ) determines the likelihood that you will make this mistake. You determined that figure at the start of your research to determine the statistical likelihood of getting your results (p value).

The typical significance level is 0.05 or 5%. If the null hypothesis is accurate, your results only have a 5% chance or less of occurring.

A Type I error has been made if a hypothesis test results in the rejection of the null hypothesis.

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Two functions are given, is the approximate interval will be x < 5.3. The correct option is B.

To decide the interval for which f(x) > g(x), we need to find the values of x that satisfy the inequality f(x) > g(x).

First, allows set up the inequality:

f(x) > g(x)

3(x-2) > 2x² - 4x + 3

Expanding and simplifying the inequality, we get:

3x - 6 > 2x² - 4x + 3

2x² - 7x + 9 > 0

Now, we can solve this quadratic inequality to find the c program languageperiod for x:

The answers to the quadratic equation 2x² - 7x + nine = 0 are approximately x = 1.46 and x = 3.54.

Since the coefficient of x² is positive (2 > 0), the parabola opens upwards. Therefore, the interval for which f(x) > g(x) is given by:

x < 1.46 or x > 3.54

Thus, B- x < 5.3 is the correct option.

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Answer:

\(13x+4y+12\)

Step-by-step explanation:

Combine all the like terms & then solve:

\((4x+2x+7x)+(-5y+9y)+(4+6+2)\)

\(13x+4y+12\)

\(\implies {\blue {\boxed {\boxed {\purple {\sf { \: 13x + 4y + 12}}}}}}\)

\(\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}\)

\(4x - 5y + 2x + 4 + 6 + 9y +7 x + 2\)

Combining like terms, we have

= \( \:( 4x + 2x + 7x ) + (9y- 5y )+ (4 + 6 + 2)\)

= \( \: 13x + 4y + 12\)

\(\large\mathfrak{{\pmb{\underline{\orange{Mystique35 }}{\orange{❦}}}}}\)

Answer:

1) 0.6×2.5=1.5

2) 6.5×2.5=16.25

3) 6.0×2.5=15

From least to greatest: 1.5 , 15, 16.25

I hope this helps.

There is a profit made of $1,191.

To determine whether there is a profit or loss, we need to calculate the total cost and subtract it from the revenue. The total cost is the sum of fixed cost and variable costs.

Total cost = Fixed cost + Variable costs
Total cost = $8,041 + $1,545
Total cost = $9,586

Profit or Loss = Revenue - Total cost
Profit or Loss = $10,777 - $9,586
Profit or Loss = $1,191

Since the result is a positive number, we can conclude that  there is a profit of $1,191.

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Function 1 and the slope is -4/7

=================================================

Explanation:

The slope of y = mx+b is m, which is the number to the left of x.

For function 1

y = (-4/7)x - 4

the slope here is m = -4/7 = -0.57 approximately

Let's use the slope formula to find the slope of function 2 given by the table of values.

Pick any two rows from that table. I'll pick the first two rows.

m = (y2-y1)/(x2 - x1)

m = (0.8 - 2)/(2 - 0)

m = -0.60

Comparing -0.57 and -0.60, we see that -0.57 is closer to zero on the number line. Meaning that function 1 has the less steep slope (i.e. more shallow slope). The further you go away from zero on the number line, in either direction, the slope will get steeper.

Answer:

Step-by-step explanation:

\(V=\frac{4\pi r^3}{3}\\ \\ r=\sqrt[3]{\frac{3V}{4\pi}}\\ \\ r=\sqrt[3]{\frac{3141.6}{\pi }}ft\\ \\ r\approx 10ft\)

I believe this is correct! Good luck :)

Theoretical Probability:

P(rolling a 2) = 16.7%

P(rolling a 5) = 16.7%

P(rolling 2 or 3) = 33.4%

P(greater than 4) = 33.4%

P(3 or less) = 50.1%

Experimental Probability:

P(rolling a 2) = 20%

P(rolling a 5) = 6%

P(rolling 2 or 3) = 36%

P(greater than 4) = 24%

P(3 or less) = 54%

Explanation:

Theoretical probability can be calculated based on the idea that each of the six numbers on the die has an equal chance of being rolled and all numbers' probabilities total to 100%. Experimental probability is based on the outcomes of your experiment (rolling the dice yourself).

When finding the probability of rolling a number or another number (for example, rolling a 2 or 3), just add the probabilities together (You rolled 2 ten times and 3 eight times, so the experimental probability of rolling a 2 or 3 is 18/50 = 36%)

For question 1.) xy+7yz-9xz+5xyz+2

For question 2.) The expression that represents David= 50 - (x-8)

For question 1.)

3xy + 5yz – 7xz + 1) + ( -4xy + 2yz – 2xz + 5xyz + 1)

First open the bracket and bring the like terms together. That is;

= 3xy-4xy+5yz+2yz-7xz-2xz+1+1+5xyz

= xy+7yz-9xz+5xyz+2

For question 2.)

The total number of paper cane that Kimmy and David had = 50 paper cane.

David = X

Kimmy = X-8

Therefore, the expression that shows David paper cranes = 50 - (x-8)

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Answer:

1)        270:206

2)      120:60

3)      74:24

4)      26:24

Step-by-step explanation:

if this is right can i get brainliest?

The intercepts of the line are (0, −7/3) and (7/6, 0).

To find the x-intercept of a line, substitute

y = 0

and solve for x, whereas to find the y-intercept, substitute

x = 0

and solve for y.

Therefore, to determine the intercepts of the line

−6x + 3y = −7 − 6x + 3y = −7,

we substitute x = 0 to find the y-intercept and substitute y = 0 to find the x-intercept, as follows.

Substitute x = 0 to find the

y-intercept:−6(0) + 3y = −7⟹ 3y = −7⟹ y = −7/3

Therefore, the y-intercept is (0, −7/3).

Substitute y = 0 to find the

x-intercept:−6x + 3(0) = −7⟹ −6x = −7⟹ x = 7/6Therefore, the x-intercept is (7/6, 0).

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The value of 8dm to 3.2 dm as a fraction is 2 1/2.

It is important to note that a fraction simply means a piece of a whole. In this situation, the number is represented as a quotient such that the numerator and denominator are split.

In this situation, in a simple fraction, the numerator as well as the denominator are both integers.

8dm to 3.2 dm as a fraction will be simply be gotten by dividing the values that are given in the question.

In this case, this will be Illustrated as:

= 8 / 3.2

= 80 / 32

= 5 / 2

= 2 1/2

Therefore, the fraction is 2 1/2.

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The volume of the parallelepiped generated by the given vectors is 8.

To find the numbers c and d such that\(A^2 = 0\) (where A is a particular matrix), we can perform matrix multiplication. The volume of the parallelepiped generated by the three specified vectors can be computed using the scalar triple product.

The first part has the matrix A = [1 1/3] . To find c and d such that A^2 = 0, we need to square the matrix A. Multiplying A by itself gives:

\(A^2\) = A * A = [1 1/3] * [1 1/3] = [1 + (1/3)*(1/3) + (1/3) + 1/9] = [2 + 2/9] = [20/9]

For \(A^2\) to be 0, we need c = -20 and d = 9. In the second part, we are given three vectors.

v1 = i + 2j - k, v2 = j + k, v3 = 3i - j + 2k. The volume of the parallelepiped generated by these vectors can be calculated using the dot-3 product formula.

volume = |v1 * (v2 x v3)|

where v2 x v3 represents the cross product of vectors v2 and v3, and v1 (v2 x v3) represents the dot product of v1 and the cross product.

Cross product calculation:

v2 x v3 = (j + k) x (3i - j + 2k) = 3i - 3j + 5k

Dot product computation:

v1 (v2 x v3) = (i + 2j - k) (3i - 3j + 5k) = 3 - 6 - 5 = -8

Taking the absolute value of -8 gives |v1 (v2 x v3)|. = 8 

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If both the upstairs and downstairs switches are in the up position, the light will be off

The given parameters are

Switches = 2 i.e. top and bottom

Also, we have:

When the upstairs switch is up and the downstairs switch is down, the light is turned on.

This means that the light is only on when the upstairs switch is up and the downstairs switch is down

Any other position of the switches, the light is off

From the question, we have

Both the upstairs and downstairs switches are in the up position

This is different from the required position to on the light

Hence, the light will be off

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Answer:

3,11,19,27

Step-by-step explanation:

Answer:

the number is ---8---

Answer:

{x = -2, y = -1

Step-by-step explanation:

Solve the following system:

{-3 y + 8 x = -13

5 y - 3 x = 1

Choose an equation and a variable to solve for.

In the first equation, look to solve for x:

{-3 y + 8 x = -13

5 y - 3 x = 1

Isolate terms with x to the left-hand side.

Add 3 y to both sides:

{8 x = 3 y - 13

5 y - 3 x = 1

Hint: | Solve for x.

Divide both sides by 8:

{x = (3 y)/8 - 13/8

5 y - 3 x = 1

Perform a substitution.

Substitute x = (3 y)/8 - 13/8 into the second equation:

{x = (3 y)/8 - 13/8

5 y - 3 ((3 y)/8 - 13/8) = 1

Expand the left-hand side of the equation 5 y - 3 ((3 y)/8 - 13/8) = 1.

5 y - 3 ((3 y)/8 - 13/8) = 5 y + (-(9 y)/8 + 39/8) = (31 y)/8 + 39/8:

{x = (3 y)/8 - 13/8

((31 y)/8 + 39/8) = 1

Choose an equation and a variable to solve for.

In the second equation, look to solve for y:

{x = (3 y)/8 - 13/8

(31 y)/8 + 39/8 = 1

Isolate terms with y to the left-hand side.

Subtract 39/8 from both sides:

{x = (3 y)/8 - 13/8

(31 y)/8 = -31/8

Solve for y.

Multiply both sides by 8/31:

{x = (3 y)/8 - 13/8

y = -1

Hint: | Perform a back substitution.

Substitute y = -1 into the first equation:

Answer: {x = -2, y = -1

As the sample size (n) increases, the power of the statistical test also increases.

The power of a statistical test measures the ability of the test to detect a true effect or reject a false null hypothesis. In this case, the investigator states that the power of his test at a significance level of 1% is 0.87. If the sample size (n) increases, the power of the test increases.

Increasing the sample size generally leads to an increase in the power of a statistical test. This is because a larger sample size provides more information and reduces the variability in the data. With a larger sample size, the test has a greater chance of detecting a true effect and rejecting the null hypothesis when it is false. Consequently, the power of the test increases.

In summary, as the sample size (n) increases, the power of the statistical test also increases. This is because a larger sample size enhances the test's ability to detect true effects and reject false null hypotheses, resulting in higher statistical power. Therefore, in this scenario, increasing the sample size would lead to an increase in the power of the test.

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90% confidence interval for the mean airborne time for flights from San Francisco to Washington Dulles is (264.639, 275.5066), if 10 randomly selected flights from San Francisco to Washington Dulles airport.

In statistics, a confidence interval describes the likelihood that a population parameter would fall between a set of values for a given percentage of the time. An area created using fixed-size samples of data from a population (sample space) that follows a particular probability distribution is known as a confidence interval. A selected population statistic is built into the interval with a specified probability.

Given,

Airborne times (in minutes) for 10 randomly selected flights from San Francisco to Washington Dulles airport.

269 255 267 285 274 275 266 258 271 281

Sample mean = 270.10

Standard deviation = 9.326

Sample size = 10

Confidence level = 90%

Formula:

Confidence interval

= x ± tₐ₎₂(s/√n)

= 270 ± 1.833(9.326/√10)

= 270.1 ± 5.4066

= (264.639, 275.5066)

90% confidence interval for the mean airborne time for flights from San Francisco to Washington Dulles is (264.639, 275.5066), if 10 randomly selected flights from San Francisco to Washington Dulles airport.

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1. The domain of the linear regression equation is of: [0,∞).

2. The range of the linear regression equation is of: [0.5,∞).

3. The domain is composed by the input values of the function while the range is composed by the output values.

4. The estimate for the cost of gas in 2025 is of $4.55.

The linear regression equation in this problem is defined as follows:

y = 0.176x + 0.5.

In which the variables are given as follows:

2025 is 23 years after 2002, hence the estimate is given as follows:

y = 0.176(23) + 0.5 = $4.55.

The domain and the range are defined as follows:

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Answer:

written out in the explanation.

Step-by-step explanation:

Area of a circle = \(\pi r^{2}\)

Circumference of a circle = \(2\pi r\)

The radius is the center point of a circle to the edge of a circle. The diameter is a line from one edge of a circle to the opposite edge.

So, the radius is simply half of the diameter.

For circle A, the radius is 12. Therefore, the diameter is 24.

The circumference is 2·\(\pi\)·12 ≈ 75.39822 inches. rounded, the circumference is 75.4 inches.

The area is \(\pi 12^{2}\) ≈ 452.38934. rounded, the area is 452.39.

For B,

you have already solved the diameter and radius correctly, good job :). The steps for finding the circumference are the same as for circle A.

the circumference is 2·\(\pi\)·6 ≈ 37.69911. rounded, the circumference is 37.7 inches.

the area is \(\pi 6^{2}\) ≈ 113.09734. rounded, the area is 113.1.

For C,

the circumference is 12. We can use the circumference equation to solve for the radius.

12 = \(2\pi r^{2}\)

divide both by 2\(\pi\)

7.63943726841 = \(r^{2}\)

square root of 7.63943726841 = 2.76395319577

radius = 2.76395 inches. rounded, the radius is 2.8 inches.

so, radius ·2 = 5.52790639154.

meaning diameter = 5.52791. rounded, the diameter is 5.5 inches.

the area is \(\pi 2.76395^{2}\) ≈23.99994. rounded, the area is 24.

Since the provided equation is inconsistent, it cannot intersect.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. When this equation is solved, we discover that the value of the variable x is 7.

Here,

we can see that the second set of equation,

4x+2y=12

20x+10y=30

4/20=2/10≠12/30

1/5=1/5≠2/5

The given equation is inconsistent so it does not intersect.

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Answer:

Its an isosceles triangle..

Step-by-step explanation: