A spinner is divided into 4 sections. The spinner is spun 100 times.
The probability distribution shows the results.
What is P(2 ≤ x ≤ 4)?
Is my answer correct?

Answer:

The third option

Step-by-step explanation:

the formula is basically reversed, you can check it yourself by giving the W and L fake values then execute the first formula then the second formula and you will receive the value of your length as your answer

Answer:

D. a shift to the right

Step-by-step explanation:

As my teacher use to say, you run the opposite way of your crazy ex. So, if the number is negative, it moves to the right. If it's positive, it moves to the left. If it's a power, it goes up or down.

// have a great day //

Answer:

D, shift to the right

Step- by-step explanation:

When equations or functions have numbers that are subtracting it's shifted to the right

When they are adding they are shifted to the left

Hope this helps!

'X' is the input while the 'C' is the output. Because the value of 'C' depends on the value of 'x', then C would be the dependent variable, and 'C' the independent variable.

Answer:

  2/15

Step-by-step explanation:

You want to know the fraction that is 2/3 of 1/5.

In this context, "of" means "times."

  2/3 of 1/5 = (2/3)×(1/5) = (2·1)/(3·5) = 2/15

2/15 of the pets are alley cats.

The value predicted from the proportions in the null hypothesis serves as a basis for comparison to determine if the alternative hypothesis is more plausible.

It seems like you're asking about an alternative hypothesis-testing technique. In this context, an alternative hypothesis is a statement that contradicts the null hypothesis, suggesting that there is an effect or relationship between the variables being tested. Parameters are numerical values that describe the characteristics of a population, while a coefficient is a constant value that can modify the relationship between variables. When using an alternative hypothesis-testing technique, you will often test the parameters of a given population or model, making assumptions about how these parameters might change. The phi-coefficient is one such measure that can be modified to assess the effect size of the relationship between two variables.

Learn more about hypothesis here

https://brainly.com/question/606806

#SPJ11

The convolution of f(t) = e^(-5t) and g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4} is given by h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}.

The convolution of two functions f(t) and g(t) is defined as:

h(t) = ∫_0^t f(τ) g(t-τ) dτ

In this case, we have:

f(t) = e^(-5t)

g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4}

To find the convolution h(t), we need to split g(t) into two parts based on the value of t:

For 0 ≤ t < 4, we have g(t) = 2.

For t ≥ 4, we have g(t) = 0.

Therefore, we can write:

h(t) = ∫_0^t e^(-5τ) 2 dτ + ∫_4^t e^(-5τ) 0 dτ

Simplifying the second integral, we get:

h(t) = 2 ∫_0^t e^(-5τ) dτ

h(t) = 2 [-1/5 e^(-5τ)]_0^t

h(t) = 2 (-1/5 e^(-5t) + 1/5)

h(t) = 2e^(-5t) - 2/5, for 0 ≤ t < 4

For t ≥ 4, we have:

h(t) = ∫_0^4 e^(-5τ) g(t-τ) dτ + ∫_4^t e^(-5τ) g(t-τ) dτ

Since g(t-τ) is zero for t-τ < 0, we can simplify the first integral to:

∫_0^(t-4) e^(-5τ) 2 dτ

Using the same technique as before, we can evaluate this integral to get:

[-1/5 e^(-5τ)]_0^(t-4)

= -1/5 e^(-5(t-4)) + 1/5

For the second integral, we have g(t-τ) = 0, so it simplifies to 0.

Therefore, we have:

h(t) = -1/5 e^(-5(t-4)) + 1/5, for t ≥ 4

Combining the two expressions for h(t), we get:

h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}

Thus, the convolution of f(t) = e^(-5t) and g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4} is given by h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}.

To learn more about convolution click here : brainly.com/question/31481291

#SPJ11

The convolution of f(t) = e^(-5t) and g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4} is given by h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}.

The convolution of two functions f(t) and g(t) is defined as:

h(t) = ∫_0^t f(τ) g(t-τ) dτ

In this case, we have:

f(t) = e^(-5t)

g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4}

To find the convolution h(t), we need to split g(t) into two parts based on the value of t:

For 0 ≤ t < 4, we have g(t) = 2.

For t ≥ 4, we have g(t) = 0.

Therefore, we can write:

h(t) = ∫_0^t e^(-5τ) 2 dτ + ∫_4^t e^(-5τ) 0 dτ

Simplifying the second integral, we get:

h(t) = 2 ∫_0^t e^(-5τ) dτ

h(t) = 2 [-1/5 e^(-5τ)]_0^t

h(t) = 2 (-1/5 e^(-5t) + 1/5)

h(t) = 2e^(-5t) - 2/5, for 0 ≤ t < 4

For t ≥ 4, we have:

h(t) = ∫_0^4 e^(-5τ) g(t-τ) dτ + ∫_4^t e^(-5τ) g(t-τ) dτ

Since g(t-τ) is zero for t-τ < 0, we can simplify the first integral to:

∫_0^(t-4) e^(-5τ) 2 dτ

Using the same technique as before, we can evaluate this integral to get:

[-1/5 e^(-5τ)]_0^(t-4)

= -1/5 e^(-5(t-4)) + 1/5

For the second integral, we have g(t-τ) = 0, so it simplifies to 0.

Therefore, we have:

h(t) = -1/5 e^(-5(t-4)) + 1/5, for t ≥ 4

Combining the two expressions for h(t), we get:

h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}

Thus, the convolution of f(t) = e^(-5t) and g(t) = {2, 0, 0 ≤ t < 4; 0, t ≥ 4} is given by h(t) = {2e^(-5t), 0 ≤ t < 4; 2e^(-5(t-4)), t ≥ 4}.

To learn more about convolution click here : brainly.com/question/31481291

#SPJ11

Answer:

câte numere de forma xy2t sunt divizibile cu 5

a. 200

I'm not sure about answer...

Answer:

Answer: 52.5

Step-by-step explanation: We can divide 50 by 20 to find what the number is. In this problem, the number is 2.5. Since we know this, we can multiply 2.5 and 21 to get 52.5.

hope this helps!

please give brainliest!

Answer:

21st term = 52.5

Step-by-step explanation:

Given that,

→ 20th term of a sequence is 50.

The common difference is,

→ 50 ÷ 20

→ 50/20

→ 2.5

Now the 21st term will be,

→ n × 2.5

→ 21 × 2.5

→ 52.5

Hence, the answer is 52.5.

Answer:

3x=10-1

3x=9

x=9/3=3

x=3

the answer is 3

Answer:

Four (4) terms.

Step-by-step explanation:

36x³ + 27x² - \(18x^{1}\) - \(9x^{0}\)

The gives four terms.

Answer: 20%

Explanation:

1. Turn it into a fraction (224/280)

2. Divide the numerator (224) by the denominator (280). (224÷280=0.8)

3. Subtract 1 by 0.8 (or 100% by 80%) that should give you the answer 0.2 (20%)

Checking work:

280x0.2=56

280-56=224

The electric field at the point directly to the east of the negatively charged point is directed towards the charge, that is, west of the point.

The correct option is D.

A negative point charge has an electric field focused at it. Thus, the electric field at the point directly to the east of the negatively charged point is directed towards the charge, that is, west of the point.

The electric field is defined as that of the electric force per unit of charge. The direction of the field is assumed to represent the direction of the force it would impose on a positive test charge. The electric field radiates outward from the a positive charge and inward from a negative point charge.

The field lines never cross. The field lines lie parallel to the charge's surface. The quantity of charge and indeed the number of field lines are proportionate.

To know more about electric field visit:

https://brainly.com/question/15800304

#SPJ9

I understand that the question you are looking for is:

What is the direction of the electric field directly to the east of an isolated negative point charge?

A. north

B. south

C. east

D. West

The fraction approximation of pi is 22/7.

Pi (π) is a mathematical constant that represents the ratio of a circle's circumference to its diameter. It is an irrational number, meaning it cannot be expressed as a finite decimal or a fraction.

Because it is an irrational number, its decimal representation goes on forever and never repeats. As a result, pi is usually approximated to a certain number of decimal places or expressed as a fraction. One such approximation is 22/7, which is close to pi and is commonly used in calculations involving circles.

22/7 is the fraction approximation of pi.

To know more about the "pi": https://brainly.com/question/457655

#SPJ11

It can be deduced that the environmental benefits of using electric vehicles are decreased levels of carbon monoxide and carbon dioxide.

It improves human health by decreasing rates of headaches, drowsiness. A decrease means less global warming, decreased greenhouse effect, as well as decreased acid precipitation.

The potential reduction in petroleum consumption will be:

= (150 million cars) × (10,000 miles per year)/25 miles per gallon × 0.1

= 6 billion

Electric vehicles only shift the emission of air pollutants from dispersed sources because most electric cars are powered by an electrical generating source identified as using combustion such as fossil fuels and coal.

Some incentives that would encourage the use of electric vehicles include mandated production for electric vehicles, reduced tolls, etc.

Learn more about an electric vehicle on:

https://brainly.com/question/1425757

Answer:

4.2

Step-by-step explanation:

Four and one-sixth is equal to 4.2. One-sixth is the same as 1/6, which is equal to 0.16666666666666666. When you add this fraction to 4, you get 4.166666666666667, which can be rounded to 4.2. Four and sixteen hundredths is equal to 4.16, which is close to 4.2 but not exactly the same. Six twenty-fifths is equal to 0.24, which is also not equal to 4.2. 416% is equal to 4.16, which is also not equal to 4.2.

Answer:

120

Step-by-step explanation:

ECA and ACB must complement each other to 180 degrees.

as must ECD and BCD.

and that is just to start with.

overall this also means that angles at the top of the intersected line must be the same as the angles at the bottom of the intersected line. they are just mirrored, so, left is right and right is left.

therefore BCD = ECA = 120 degrees.

just imagine what would have to happen, so that that relationship between the angles can be destroyed.

right, at least one of the lines has to bend or kink away from the straight line at the intersection point.

but then, these parts of the "lines" are no longer part of the same straight line.

so, for truly straight lines, the mentioned relations between the angles always applies.

The margin of error if we want a 90% confidence interval for the true population mean age is calculated to be 1.62 years, therefore option (a) is correct.

We can use the formula for the margin of error:

Margin of error = z × (σ / √(n))

where z is the z-score for the desired level of confidence, σ is the population standard deviation, and n is the sample size.

For a 90% confidence interval, the z-score is 1.645. Substituting the given values, we get:

Margin of error = 1.645 × (9.84 / √(100)) = 1.62

Therefore, the margin of error is 1.62 years, which is option (a).

Learn more about Standard Deviation :

https://brainly.com/question/23907081

#SPJ4

Answer:

Step-by-step explanation:

The values of p1, p2, n1, and n2 are not provided in the question, so we cannot calculate the specific test statistic, p-value, or construct the confidence interval without that information.

To determine the null and alternative hypotheses for testing the significance of a difference between two population proportions, we need to consider the given information.

In this case, the sample sizes and the number of successes in each sample are provided. Let's denote the sample proportions as p1 and p2, which can be calculated as p1 = X1/n1 and p2 = X2/n2, where X1 and X2 represent the number of successes in each sample, and n1 and n2 represent the respective sample sizes.

The null and alternative hypotheses can be stated as follows:

Null Hypothesis (H0): π1 = π2 (The population proportions are equal)

Alternative Hypothesis (H1): π1 ≠ π2 (The population proportions are not equal)

Therefore, the correct answer is:

B. H0: π1 = π2; H1: π1 ≠ π2

To calculate the test statistic (ZSTAT) and the p-value, we can use the following formulas:

ZSTAT = (p1 - p2) / √[(p1(1 - p1) / n1) + (p2(1 - p2) / n2)]

To find the p-value, we need to compare the absolute value of ZSTAT to the critical value(s) based on the significance level. Since the significance level is not provided, we cannot determine the exact p-value without that information.

Regarding the conclusion, we compare the p-value to the significance level (α) to make a decision. If the p-value is less than α, we reject the null hypothesis; otherwise, we fail to reject the null hypothesis.

To construct the 99% confidence interval estimate, we can use the formula:

p1 - p2 ± Zα/2 * √[(p1(1 - p1) / n1) + (p2(1 - p2) / n2)]

Here, Zα/2 represents the critical value corresponding to a 99% confidence level, which is obtained from the standard normal distribution.

Unfortunately, the values of p1, p2, n1, and n2 are not provided in the question, so we cannot calculate the specific test statistic, p-value, or construct the confidence interval without that information.

To learn more about population visit:

https://brainly.com/question/16138725

#SPJ11

The percentage of data between 38 and 62 is given as follows:

c. 68%.

The Empirical Rule states that, for a normally distributed random variable, the symmetric distribution of scores is presented as follows:

38 and 62 is within one standard deviation of the mean, hence the correct option is given by option c.

More can be learned about the Empirical Rule at https://brainly.com/question/10093236

#SPJ1

For a trigonometric equation. Cos^2x=3sin^2x, the solution is mathematically given as x = π/6 + 2nπ.

Trigonometry is the study of angles and the angular connections of planar and three-dimensional shapes. Trigonometry is made up of trigonometric functions (also known as circle functions) such as cosecant, cosine, cotangent, secant, sine, and tangent.

Generally, the equation for the trigonometric equation is mathematically given as:

Cos^2x=3sin^2x

Therefore

1 - sin^2(x) = 3 sin^2(x)

1/4 = sin^2(x)

Hence introducing \pi

x = arcsin(1/2) + 2nπ  

x = π/6 + 2nπ

In conclusion,

x = π/6 + 2nπ

For a trigonometric equation. Cos^2x=3sin^2x, the solution is mathematically given as x = π/6 + 2nπ.

Read more about trigonometry,

https://brainly.com/question/26157370

#SPJ4

Answer:

175 Miles has to be driven to do the plans cost the same.

Step-by-step explanation:

Assume The Chau Drive Y miles .

We Have Given Two Plans ,

Now,Put First Plan=Second Plan (When Both Plans Cost The Same)

50$ + 0.19$ × Y = 57$ + 0.15$ × Y

0.04$ × Y = 7  ⇔  Y = 175 Miles

Answer:

leading co-efficent is 4

Answer:

my answer is A

Step-by-step explanation:

if you work out the equation where you know that at the x intercept y=0 you will find A to be true

Answer:

B. (-2, -1)

Step-by-step explanation:

Step-by-step explanation:

Answer option B - ( -2, -1)

An equation is formed of two equal expressions. The value of x is -28/9.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

The given expression can be simplified as,

\(2 \frac17+\dfrac37(3x-5)=-4\\\\\dfrac{15}{7} + \dfrac{9x-15}{7} = -4\\\\ \dfrac{15+9x-15}{7} = -4\\\\9x = -28\\\\x = \dfrac{-28}{9}\)

Hence, the value of x is -28/9.

Learn more about Equation:

https://brainly.com/question/2263981

#SPJ1