I need help QUICKLY plzz, due soon

Answer:

44.10 = 2.1x

x = 21 miles

Step-by-step explanation:

Cost per mile = $2.1

Driver tip = $5

Total amount paid = $49.10

Let

x = number of miles

​Write an equation to determine the distance in miles \left(x\right)(x) between the airport and Anna's home.

Total cost of miles = Total amount paid - Driver tip

= $49.10 - $5

= $44.10

Equation to determine distance in miles

Total cost of miles = cost per mile * number of miles

44.10 = 2.1x

Find the distance between the airport and Anna's home

44.10 = 2.1x

Divide both sides by 2.1

44.10 / 2.1 = 2.1x / 2.1

21 = x

x = 21 miles

To estimate the parameters for the exponential and uniform distributions based on the given data, you can use the method of moments or maximum likelihood estimation.

To estimate the parameter for the exponential distribution, you can use the fact that the mean of an exponential distribution is equal to the reciprocal of the rate parameter (λ). In this case, you can calculate the sample mean of the data (86 + 24 + 9 + 50) / 4 = 42.25. Since the mean of the exponential distribution is equal to 1/λ, you can estimate the rate parameter as λ = 1 / 42.25.

For the uniform distribution, you need to estimate the minimum (a) and maximum (b) values. The minimum value can be estimated as the minimum observation in the data, which is 9. The maximum value can be estimated as the maximum observation, which is 86.

Once you have estimated the parameters, you can construct Q-Q plots. In a Q-Q plot, you plot the quantiles of the observed data against the quantiles of the theoretical distribution. For the exponential distribution, you can use the quantile function to calculate the expected quantiles. For the uniform distribution, you can calculate the quantiles using the formula (i-0.5)/n, where i ranges from 1 to n and n is the number of observations.

By comparing the observed quantiles with the expected quantiles on the Q-Q plot, you can visually assess the fit of the data to the chosen distributions.

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Answer:

42

Step-by-step explanation:

The probability that at least one person received $20 is 0.3

In math the term called probability is defined as a number that reflects the chance or likelihood that a particular event will occur.

Here we know that two people are picked at random from a group of 50 and given $10 each.

Here we have also know that three people are picked from the same group - one or more people could have been picked both times - and given $10 each.

Then the probability is calculated based on the binomial distribution is written as,

=> P = (50 3) 10³ (1 - 10) ⁵⁻³

When we simplify this one then we get the value of p as 0.3.

Then the following values are calculated through it,

μ = 15

σ = 3.24

σ² = 10.5

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Answer:

You didn't send a picture from that question so we don't know what to do with it.

Answer:

36 units

Step-by-step explanation:

to do this you must first find the lengths of all the sides with pythagorean theorem

for a to b you use

3^2 + 4^2 = c^2

9 + 16 = c^2

25 = c^2

c = 5

5 is one of the lengths

b to c uses the same equation

so

5 is another one of the lengths

for d to c your equation is

5^2 + 12^2 = c^2

25 + 144 = c^2

169 = c^2

13 is another of the lengths

d to a has the same length as c to d so there is another 13 unit length

so

5 + 5 + 13 + 13 is your equation to find the perimeter

5 + 5 + 13 + 13 = 36

that is your answer

Answer:

Step-by-step explanation:

Sum of all angles of triangle = 180

90 + 50 +10x = 180     {Combine like terms}

  140 + 10x = 180    {Subtract 140 from both sides}

             10x = 180 - 140

             10x = 40 {Divide both sides by 10}

                x = 40/10

x = 4

The number of possible king-queen pairs can be determined by multiplying the number of candidates for king by the number of candidates for queen.

To calculate the number of king-queen pairs, we multiply the number of candidates for king by the number of candidates for queen. In this case, there are four candidates for homecoming queen and three candidates for king. Therefore, the total number of king-queen pairs would be 4 multiplied by 3, which equals 12.

Each candidate for king can be paired with each candidate for queen, resulting in multiple possible combinations. By multiplying the number of candidates for each position, we account for all possible pairings. In this scenario, there are three potential kings and four potential queens. For each king, there are four possible queens he can be paired with. Since there are three kings, we multiply 3 by 4 to get the total number of 12 king-queen pairs.

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Since M is the centroid of triangle ΔGHI, so KI = 10

The centroid of a triangle is the point at which the three medians of the triangle intersect.

In triangle ΔGHI, M is the centroid of the triangle. If HI = 20, we need to find KI. We proceed as follows.

We know that M is the centroid of the triangle and is the center point where the three medians of the triangle intersect.

Now, GK is a median which passes through HI at K.

Since GK is a median, this implies that HK = KI.

Also, HK + KI = HI

So, since HK = KI, we have that

HK + KI = HI

KI + KI = HI

2KI = HI

KI = HI/2

Given that HI = 20, substituting this into the equation, we have that

KI = HI/2

= 20/2

= 10

So, KI = 10

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To prove that gcd (n,n+2) is either 1 or 2 for any integer n, we can use a proof by contradiction. We can conclude that gcd (n,n+2) is either 1 or 2 for any integer n.

Suppose there exists an integer n such that gcd (n,n+2) is not 1 or 2, and let k be the gcd of n and n+2, where k ≥ 3. Then k is a common divisor of n and n+2, and k is not equal to 1 or 2.

Since k divides both n and n+2, we can write n = ka and n+2 = kb, where a and b are integers. Subtracting these equations gives 2 = kb - ka = k (b-a).

Since k is not equal to 1 or 2, it follows that k must be greater than or equal to 3. Therefore, k cannot divide 2, which implies that k (b-a) ≠ 2. This contradicts our assumption that gcd (n,n+2) is not 1 or 2.

Hence, we can conclude that gcd (n,n+2) is either 1 or 2 for any integer n.

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Answer:

42

Step-by-step explanation:

Add all the numbers 20+, 32, 34, 36, 40, 42, 44, 48, 55, 65=416

then divide by total number of digits

(Mean: The mean is the average. It is found by adding all the data values and then dividing by the number of data points.)

41.6 rounded to 42

domain all R and range [3,infinity)

Step-by-step explanation:

domain is all the values of x, i.e x=2

range is the outcome of the equation, i.e 2*2 + 3 = 7

Answer:

Your answer is

3z=30

z=10.

Answer:

10

Step-by-step explanation:

Because it is equal to each other. you have to find out what makes 3 equal to 15 which would be 5 because 3*5=15

Since you used five on the bottom one then you have to do the same for the top. Which would be 2*5=10 so then you get your answer

Hope this helps!

Can I have brainliest?

Answer:

V= 3,14×7×3×5

= 21,98×15

= 131,94

The distribution of Y is a Beta distribution

Assume X is a continuous random variable and has a pdf f (x) = 3x2, 0 < x < 1. Let Y = X3.

a. The pdf of Y can be found by substituting X3 into f (x) to get:

fY(y) = 3y2/3, 0 < y < 1

b. The distribution of Y is a Beta distribution, since it is a continuous random variable with a pdf f (x) = 3x2, 0 < x < 1.

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Answer:

13

Step-by-step explanation:

We know that a^2+b^2 = c^2  where a and b are the legs and c is the hypotenuse

5^2 + 12^2 = c^2

25+144 = c^2

169 = c^2

Taking the square root of each side

sqrt(169) = sqrt(c^2)

13 =c

The statement that says "there are infinitely many sets of two unit vectors that are perpendicular to each other" is true. Therefore, the correct option is True.

In Euclidean geometry, any two vectors can be extended to form an orthogonal basis. Given two linearly independent vectors a and b, the cross product a × b is a third vector c that is orthogonal to both a and b. We may now define a unit vector u_1 in the direction of a by dividing a by its length, and a second unit vector u_2 in the direction of c by dividing c by its length.

The dot product of the vectors a and b in three-dimensional space is defined as:  

a · b = |a||b| cosθ

where θ is the angle between the two vectors.

This definition may be extended to any inner product space, giving the angle between a and b with respect to the inner product: The dot product of two vectors is zero if and only if the vectors are perpendicular to each other. Therefore, it is possible to obtain multiple sets of unit vectors which are perpendicular to each other.

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If a sample of 8 scores has a mean of 10 and after removing one score, the mean of the remaining scores is 11, the score that was removed is 7.

The mean of the original sample is 10. This means that the sum of the scores in the sample is 8 multiplied by 10, which equals 80. After one score is removed, the mean of the remaining scores is 11. Since there are now 7 scores remaining in the sample, the sum of those scores is 7 multiplied by 11, which equals 77.

To find the score that was removed, we need to calculate the difference between the sum of the original sample and the sum of the remaining scores. The difference is 80 minus 77, which equals 3. Therefore, the score that was removed from the sample is 3.

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Answer:

17s + 5t

Step-by-step explanation:

Simple. There are two variables that can be added. Also another that can't be added. Add the two variables and the other one and you've got the answer.

Answer:

the question is not complete

5s + 12s = 17s

Answer:

eric

Step-by-step explanation:

just took the test

Answer:

it took the airplane 12 seconds to reach the ground

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

The expression in terms of m and h is D = m/h if the expression is hD = m; the answer is D = m/h.

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The expression is:

hD = m

To solve for D make the subject as D

As we know the arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

Divide by h on both the sides:

hD/h = m/h

Here h ≠ 0

D = m/h

Thus, the expression in  terms of m and h is D = m/h if the expression is hD = m; the answer is D = m/h.

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Answer:

\(15x^4 - 29x^2y^2 - 14y^4\).

Step-by-step explanation:

(5x^2 + 2y^2) * (3x^2 - 7y^2)

= 15x^4 + 6x^2y^2 - 35x^2y^2 - 14y^4

= 15x^4 - 29x^2y^2 - 14y^4

= \(15x^4 - 29x^2y^2 - 14y^4\)

Hope this helps!

The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85

To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".

According to the sample data

Number of adults who answered "Newspapers": 64

Number of adults who answered "Radio": 21

Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition

64 + 21 = 85

Rounding this answer to the nearest whole number, we get

85 ≈ 85

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The given question is incomplete, the complete question is:

There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.

Answer:

y-3x-2

Step-by-step explanation:

take 2 points (1,1), (3,7)

find the slope: 7-1/3-1=3

plug into y=2x+b (used pt (1,1) )

1=3(1)+b

1=3+b

b=-2

y=3x-2

The total number of sides of a regular polygon with each exterior angle of measure 30 degrees is equal to 12.

Let us consider 'n' be the number of sides of the regular polygon.

Let 'y' be the measure of each of the exterior angle of regular polygon.

y = 30 degrees

Measure of each of the exterior angle of regular polygon 'y'

= ( 360° ) / n

⇒ n = ( 360° / y )

Substitute the value we get,

⇒ n = ( 360° / 30° )

⇒ n = 12

Therefore, the number of sides of a regular polygon with each of the exterior angle 30 degrees is equal to 12.

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The above question is incomplete, the complete question is:

How many sides does a regular polygon have when each exterior angle measures 30 degrees?

Answer:

yvhj gycvnuvngfyggjcgybkivuv

Answer:

Quadrant 1

Step-by-step explanation:

Answer:

b > -6 or b < 6

Step-by-step explanation:

The absolute value operator always returns a positive number, with |b| = b if b > 0, and |b| = -b if b 0. With this in mind, consider the following inequality:

Because of the absolute value operator, this is valid for b values larger than 6 and less than -6. As a result, the compound inequality that this circumstance illustrates is:

The compound inequality is equivalent to the absolute value inequality |bl> 6 is b < -6 or b > 6.

Option D is the correct answer.

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal =

Greater than and equal=

We have,

The absolute value inequality |b| > 6 is equivalent to the compound inequality b < -6 or b > 6.

To see why, consider that the absolute value of b is greater than 6 if b is either greater than 6 or less than -6 (because the absolute value of any number greater than 6 or less than -6 will be greater than 6).

So, we can write the inequality as:

|b| > 6

b > 6 or -b > 6

b > 6 or b < -6

b < -6 or b > 6 (rearranging the terms)

Therefore,

The compound inequality is equivalent to the absolute value inequality |bl> 6 is b < -6 or b > 6.

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To find the cost of the drill one year ago, we can use the concept of simple interest.

Let's denote the cost of the drill one year ago as "P". The price of the drill currently is $1,500, and it has increased by 2% over the past year. Using the simple interest formula:

Price after 1 year = Principal (1 + Interest Rate)

$1,500 = P (1 + 0.02) To find P, we rearrange the equation:

P = $1,500 / (1 + 0.02)

P ≈ $1,470.59 Therefore, the drill cost approximately $1,470.59 one year ago. The closest option from the given choices is $1,470.59.

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The time it will take the flight is C) 5 hours.

To solve this problem, we can use the formula: distance = rate x time. In this case, we know that the distance is 1500 miles and the rate (or speed) is 300 miles per hour. We can rearrange the formula to solve for time: time = distance / rate. Plugging in the values we have, we get:

time = 1500 miles / 300 miles per hour
time = 5 hours

Therefore, the correct answer is C. It will take Penny 5 hours to fly from her starting point to Palawan at an average speed of 300 miles per hour. This calculation assumes that the plane maintains a constant speed throughout the entire flight, which may not be the case due to factors such as wind and turbulence.

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