whoever can do this i’ll mark brainiest :)

Answer:

A

Step-by-step explanation:

Answer is D. 288 . i am glad to help

Answer:

There are two possibilities: 1) A is the hypotenuse: \(C \approx 18.74\), 2) A is not the hypotenuse: \(C \approx 21.19\)

Step-by-step explanation:

Let be C the remaining side of the triangle. Given that triangle is right-angled and the remaining side can be found by Pythagorean Theorem, there are two options by using the two known sides:

1) A is the hypotenuse

\(20^{2} = 7^{2} + C^{2}\)

\(C^{2} = 20^{2}-7^{2}\)

\(C = \sqrt{20^{2}-7^{2}}\)

\(C \approx 18.74\)

2) A is not the hypotenuse

\(C^{2} = 20^{2} + 7^{2}\)

\(C = \sqrt{20^{2}+7^{2}}\)

\(C \approx 21.19\)

Answer:

rocks. rocks everywhere means no where for trees so no foods.

Step-by-step explanation:

The important to select the appropriate value of alpha based on the characteristics of the data and the goals of the forecasting model.

The statement "for a time series for simple exponential smoothing, a larger alpha is smoother than a shorter period" is true.

In simple exponential smoothing, the forecast for the next period is based on the previous forecast and the difference between the actual value and the previous forecast. The smoothing parameter alpha controls the weight given to the most recent observation compared to the previous forecasts.
A larger alpha places more weight on the most recent observation, resulting in a forecast that is more responsive to recent changes in the data. As a result, the forecast will exhibit less volatility or variability, making it smoother. This means that a larger alpha will lead to a more stable forecast with less fluctuation around the trend.
On the other hand, a smaller alpha places less weight on the most recent observation, resulting in a forecast that is less responsive to recent changes in the data.

As a result, the forecast will be more volatile or variable, making it less smooth. This means that a smaller alpha will lead to a forecast that is more susceptible to fluctuations around the trend.
In summary, the choice of alpha is a trade-off between stability and responsiveness to changes in the data. A larger alpha will lead to a smoother forecast, while a smaller alpha will lead to a more volatile forecast.

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Answer:

I think it is the second option

Step-by-step explanation:

Answer:

19) 100

20) 360 - 90 = 270

21) 360- 125 = 235

22) 45

Step-by-step explanation:

Central angles and the arcs they create are congruent.

Answer: moderate, C, B

Step-by-step explanation:

A)  A shows a moderate negative correlation.  It is moderate because the scattered points are sort of close to the line so it has moderate/medium correlation.  It is also negative because it has a negative slope

B) C shows the strongest correlation because the points around the line are tight and close.

C)  B should not have been drawn.  The  correlation is very weak.  You do know where the line should be because the points are all over the place.

Carlos' speed, we cannot determine if the distance he cycled was greater than 6 miles based solely on the information that it took him half an hour.

The information provided states that Carlos took half an hour to cycle from his house to the library. However, the given information does not specify the speed at which Carlos was cycling.

Distance is determined by both speed and time. Without knowing Carlos' speed, we cannot accurately determine the distance he cycled.

For example, if Carlos cycled at a constant speed of 12 miles per hour, then the distance he traveled in half an hour would be 6 miles (12 miles/hour * 0.5 hours = 6 miles). In this case, the distance would be greater than 6 miles.

On the other hand, if Carlos cycled at a constant speed of 5 miles per hour, then the distance he traveled in half an hour would be 2.5 miles (5 miles/hour * 0.5 hours = 2.5 miles). In this case, the distance would be less than 6 miles.

Therefore, without knowing Carlos' speed or having additional information, we cannot determine whether the distance he cycled was greater than 6 miles based solely on the given information that it took him half an hour.

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Answer:

39 Yards

Step-by-step explanation:

It's $0.24 per yard, and there was $15.64 left of $25.00.

First, to calculate how much was spent, we subtract the remaining $15.64 from the initial $25.00

$25.00 - $15.64 = $9.36

$9.36 was spent on ribbon.

Now, to calculate how much yards, we divide the spent $9.36 by the price of a yard, $0.24.

$9.36 / $0.24 per yard

39

Therefore, Amanda bought 39 yards of ribbon

The condition imposed such that a₁X₁ + a₂X₂ +.....+ aₙXₙ is an unbiased estimator of μ must be that ∑a = 1

We are given that X₁, X₂, ... Xₙ constitute a random sample from the population with the mean μ.

This implies, E(X) = μ

Now we have another set of data here, a₁X₁ + a₂X₂ +.....+ aₙXₙ

For a₁X₁ + a₂X₂ +.....+ aₙXₙ to be an unbiased estimator of μ, we should have

E(∑aX) = μ

or, ∑a E(X) = μ

Now we already know that

E(X) = μ

Hence we get

∑a = 1

Hence condition imposed must be that ∑a = 1

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Correct Question

If X₁, X₂, ... Xₙ constitute a random sample from the population with the mean μ, what condition must be imposed on the constants a₁, a₂, ... aₙ so that a₁X₁ + a₂X₂ +.....+ aₙXₙ is an unbiased estimator of μ?

Answer:

Step-by-step explanation:

Total outcome is 10 and favorable outcome is 2 ⇒ the probability that the first number is a multiple of five is \(\frac{2}{10}\) = \(\frac{1}{5}\)

Total outcome is 9 and favorable outcome is 3 ⇒ the probability that the first number is a multiple of three is \(\frac{1}{3}\) if first draw was successful, and \(\frac{2}{9}\) if the first number was multiple of three.

Using conditional probability, it is found that there is a 0.0667 = 6.67% probability that the first number is a multiple of five and the second number is a multiple of three.

A probability is the number of desired outcomes divided by the number of total outcomes.

Conditional Probability

\(P(B|A) = \frac{P(A \cap B)}{P(A)}\)

In which

In this problem:

There are 10 numbers, of which 2(5 and 10) are multiples of 5, hence \(P(A) = \frac{2}{10} = 0.2\)

Then, supposing a multiple of 5 is taken, there will be 9 numbers, of which 3(3, 6 and 9) are multiples of 3, hence \(P(B|A) = \frac{3}{9} = \frac{1}{3} = 0.3333\)

Then:

\(P(B|A) = \frac{P(A \cap B)}{P(A)}\)

\(P(A \cap B) = P(A)P(B|A)\)

\(P(A \cap B) = 0.2(0.3333)\)

\(P(A \cap B) = 0.0667\)

0.0667 = 6.67% probability that the first number is a multiple of five and the second number is a multiple of three.

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The equation based on the information is:

34 = x - 18

In mathematics, an equation is an expression that states that two expressions are equal by joining them with the equal sign =. Equations and their cousins ​​in other languages ​​may have subtly different meanings. For example, in French an equation is defined as containing one or more variables, whereas in English any well-formed expression consisting of two expressions joined by an equal sign is an equation. To solve an equation involving variables, it is necessary to determine which values ​​of the variables make the equation true. The variables for which the equation must be solved are also called unknowns, and the values ​​of the unknowns that satisfy the equation are called the solution of the equation. There are two types of equations: identities and constraints. The ID applies to all values ​​of the variable. A constraint expression applies only to specific values ​​of a variable.

Given that :

Bella is baking 34 cookie for the holiday party tonight. She baked 18 before leaving for school and will bake the ret when he return home.

Therefore, the equation is:

34 = x - 18

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The value of cos Ф would be,

⇒ cos Ф = 0.65

We have to given that;

⇒ sin Ф = 0.751

Now, We can simplify as;

Since, We know that;

⇒ sin² Ф + cos² Ф = 1

⇒ cos Ф = √ 1 - sin² Ф

⇒ cos Ф = √1 - 0.751²

⇒ cos Ф = √1 - 0.564

⇒ cos Ф = √ 0.436

⇒ cos Ф = 0.65

Thus, The value of cos Ф would be,

⇒ cos Ф = 0.65

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Answer: ok LOL thx XD

Step-by-step explanation: BRAINLIEST PLS

The number line which represents the solution bro the inequality 2x + 5 < 11 is:

First, we must solve the inequality so that it looks it's simplest form in order to be represented on a number line.

Solving the inequality is as follows:

In essence, representation of the inequality, y < 3 on the number line is as follows:

An open circle is at positive 3. Everything to the left of the circle is shaded.

PS: It is only a closed circle if the inequality includes an equal to sign.

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Answer:

(3)

Step-by-step explanation:

the sum of n and 5 is (n + 5), then multiply by 3 gives

3(n + 5)

The result is at least 17 which means it must be greater than or equal to 17

3(n + 5) ≥ 17

Answer:

See below

Step-by-step explanation:

\(\textit{internal division of a line segment using ratios} \\\\\\ A(-3,2)\qquad B(5,-4)\qquad \qquad \stackrel{\textit{ratio from A to B}}{2:6} \\\\\\ \cfrac{A\underline{P}}{\underline{P} B} = \cfrac{2}{6}\implies \cfrac{A}{B} = \cfrac{2}{6}\implies 6A=2B\implies 6(-3,2)=2(5,-4)\)

\((\stackrel{x}{-18}~~,~~ \stackrel{y}{12})=(\stackrel{x}{10}~~,~~ \stackrel{y}{-8}) \implies P=\underset{\textit{sum of the ratios}}{\left( \cfrac{\stackrel{\textit{sum of x's}}{-18 +10}}{2+6}~~,~~\cfrac{\stackrel{\textit{sum of y's}}{12 -8}}{2+6} \right)} \\\\\\ P=\left( \cfrac{ -8 }{ 8 }~~,~~\cfrac{ 4}{ 8 } \right)\implies P=\left(-1~~,~~\cfrac{1}{2} \right)\)

None of the equations are correct.

What is an equation?

An equation is a formula in mathematics that expresses the equality of two expressions by linking them with the equals sign. In other languages, the word equation and its cognates may have slightly different meanings. In French, an équation is defined as having one or more variables, whereas in English, an equation is any well-formed formula consisting of two expressions linked by an equals sign.

For perpendicular equations, the product of slope is -1, but none of the options here is have slope whose product with the given equation is -1.

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Answer:17

Step-by-step explanation:

Answer:

She'd still be a psychopath

Step-by-step explanation:

Answer:

reflection

Step-by-step explanation:

its flipping over the y axis therefore a reflection

sorry if this is wrong :)

Given the sum of fraction;

To get the domain of the function, we need to get all the input variable "x" for which the expression exists.

The function will exist when x ≠ 0 i.e. x < 0 and x > 0

The domain of the expression in interval notation is

Solve the given expression

Hence the sum of the indicated operation is 8/5x

Step-by-step explanation:

haiajajiqbqkqiebblbajwvwjnw

Answer:6

Step-by-step explanation:

Answer:

ummm im pretty sure its d

Step-by-step explanation:

Answer:

im pretty sure its last option y=2x

Step-by-step explanation:

on the graph it touches all even numbers

From the calculation, you are 100 m away from the plateau.

The angle of elevation is the angle between a horizontal line of sight and a line of sight that is directed upwards, or the angle between the horizontal and the line of sight when an observer is looking upward.

We know that;

Angle of elevation = 35°

Height of the Plateau = 70 m

Thus;

Tan 35 =70/x

x = Your distance from the plateau.

x = 70/Tan 35

x = 100m

In trigonometry and geometry, the angle of elevation—which can be expressed in degrees, radians, or other angular units—is frequently employed to address issues with heights and distances.

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Answer:

f(3) = -4

Step-by-step explanation:

f(3) = f(2)*-1/2; Solve for f(2) first;

f(2) = f(1)*-1/2

f(2) = -16*-1/2

f(2) = 8;

Now get back to f(3);

f(3) = f(2)*-1/2

f(3) = 8*-1/2

f(3) = -4

If he can earn 10% interest compounded annually then he have \(\$148,643.627\) by the time he's 30 yrs old, without putting anymore in , to have a million dollars the bank when he turns 50.

In the given question,

Augie wants to become a millionaire by the time he's 50 years old.

He can earn \(10\%\) interest compounded annually.

We have to find how much money he have by the time he's 30 yrs old, without putting anymore in ,to have a million dollars the bank when he turns 50.

We we learn about compound interest.

In the compound interest we receive payment in the interest also.

The formula of Compound Amount is

\(A=P(1+\frac{r}{100})^n\)

where \(A=\) Amount After interest

\(P=\) Principal Amount

\(r=\) Interest rate

\(n=\) Time

From the given question \(A=1,000,000\), \(r=10\%\), \(n=20\)

Now putting the value in the formula

\(1,000,000=P(1+\frac{10}{100})^{20}\)

Simplifying

\(1,000,000=P(1+\frac{1}{10})^{20}\)

\(1,000,000=P(1\times\frac{10}{10}+\frac{1}{10})^{20}\)

\(1,000,000=P(\frac{10}{10}+\frac{1}{10})^{20}\)

\(1,000,000=P(\frac{10+1}{10})^{20}\)

\(1,000,000=P(\frac{11}{10})^{20}\)

\(1,000,000=P({1.1})^{20}\)

\(1,000,000=P\times6.7275\)

Divide by \(6.7275\) on both side

\(\frac{1,000,000}{6.7275}=P\times\frac{6.7275}{6.7275}\)

\(148,643.627=P\)

\(P=148,643.627\)

Hence, if he can earn 10% interest compounded annually then he have \(\$148,643.627\) by the time he's 30 yrs old, without putting anymore in , to have a million dollars the bank when he turns 50.

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