Ranking of best beers at the Portland Brewfest is an example of a(n)

scale.

Answer:

\(x=7\)

Step-by-step explanation:

So we have the equation:

\(7x-27=3x-5+x-1\)

Combine like terms:

\(7x-27=4x-6\)

Subtract 4x from both sides:

\(3x-27=-6\)

Add 27 to both sides:

\(3x=21\)

Divide both sides by 3:

\(x=7\)

So, the value of x is 7.

And we're done!

Steps to solve:

7x - 27 = 3x - 5 + x - 1

~Combine like terms

7x - 27 = 4x - 6

~Add 27 to both sides

7x = 4x + 21

~Subtract 4x to both sides

3x = 21

~Divide 3 to both sides

x = 7

Best of Luck!

The expression represents the time she spent driving is       \(\frac{228.95}{x}\)

The expression represent the time she spent driving can be calculated as follows:

We know that

Time = \(\frac{distance}{ speed}\)

Let x be her speed on the first half of the trip.

Then for first half , the tiime she takes is

T1= \(\frac{150}{x}\)

while in a second half the time taken by her is

T2= \(\frac{150}{1.9x}\)

T2= \(\frac{78.95}{x}\)

the total time she spent on driving is

T1 + T2 =    \(\frac{150}{x}\) + \(\frac{78.95}{x}\) =    \(\frac{228.95}{x}\)

Hence, the expression represents the time she spent driving is       \(\frac{228.95}{x}\)

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Answer:

Step-by-step explanation:

5x+2x+7=7x+7

No it is not

5x+7+2x

5x + 7x are like terms add them

7x + 7 is the answer

Answer:

3(2x+1)+2(x+4)

=6x+3+2x+8

=6x+2x+3+8

=8x+11

Using the information, combine the individual probabilities to compute the probability that Peter will pass the quiz is (c) 0.0035.

To compute the probability that Peter will pass the quiz (i.e., get at least 7 questions correct), we need to sum the probabilities of getting exactly 7, exactly 8, exactly 9, and exactly 10 questions correct.

So, the probability of passing the quiz is:

P (getting at least 7 correct) = P (getting exactly 7 correct) + P (getting exactly 8 correct) + P (getting exactly 9 correct) + P (getting exactly 10 correct)

= 0.0031 + 0.000386 + 2.86 × 10⁻⁵ + 9.54 × 10⁻⁷

= 0.0035

Therefore, the result is c. 0.0035.

The binomial formula can be used to solve a wide range of problems in probability and statistics. The binomial formula is used to calculate the probability of getting a specific number of successes in a fixed number of independent trials, where each trial has only two possible outcomes (success or failure).

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The value of A[:,1] .A is 51. To calculate this, we take the dot product of the first column vector [1;4;7] with matrix A [123;456;789]. The resulting sum is 51.

To evaluate this expression, we need to understand the given matrix A. It is a 3x3 matrix represented as [123;456;789], where each row represents a vector.

The notation A[:,1] denotes the first column of matrix A. In this case, it is [1;4;7].

To calculate A[:,1], we perform the dot product of the first column vector [1;4;7] with matrix A.

Performing the dot product, we multiply each element of the column vector with the corresponding element in the matrix and sum the results.

11 + 42 + 7*3 = 1 + 8 + 21 = 30 + 21 = 51.

Therefore, the value of A[:,1]. A is 51, i.e., Option B is the correct answer.

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The estimated value of X is 16, the probability that X takes the esteem 20 is 0.0513, and the likelihood that X takes the esteem 19 is 0.0683

The likelihood that X takes the esteem 21 is 0.0408, and the foremost likely esteem for X is 9. 

The probability mass function (PMF) for a negative binomial irregular variable X with parameters p and r is given by:

\(P(X=k) = (k+r-1) select (k) p^r (1-p)^k, for k=0,1,2,...\)

where "choose" speaks to the binomial coefficient, which can be calculated utilizing the equation:

(n select k) = n! / (k! (n-k)!), where n! indicates the factorial of n.

Substituting the given values, we have:

p = 0.2

r = 4

a. The mean of a negative binomial distribution with parameters p and r is given by:

E(X) = r(1-p) / p

Substituting the values, we get:

E(X) = 4(1-0.2) / 0.2 = 16

Subsequently, the expected value of X is 16.

b. To discover P(X=20), ready to utilize the PMF:

P(X=20) = (20+4-1) select (20) (0.2)^4 (0.8)^20

Employing a calculator, we get:

P(X=20) ≈ 0.0513

Hence, the likelihood that X takes the esteem 20 is around 0.0513.

c. To discover P(X=19), we will utilize the PMF:

P(X=19) = (19+4-1) select (19) (0.2)^4 (0.8)^19

Employing a calculator, we get:

P(X=19) ≈ 0.0683

Hence, the likelihood that X takes the value 19 is around 0.0683.

d. To discover P(X=21), we are able to utilize the PMF:

P(X=21) = (21+4-1) select (21) (0.2)^4 (0.8)^21

Using a calculator, we get:

P(X=21) ≈ 0.0408

Subsequently, the likelihood that X takes the esteem 21 is roughly 0.0408.

e. The mode (most likely esteem) for a negative binomial dissemination with parameters p and r is given by:

mode = floor((r-1)(1-p) / p)

Substituting the values, we get:

mode = floor((4-1)(1-0.2) / 0.2) = 9

Hence, the most likely value for X is 9.

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Answer: Option C.

Step-by-step explanation:

Ok, first, a linear function is something of the shape of:

y = a*x + b.

And the graph of those functions is a line, as the name implies, so we can discard that option.

So this must be a non-linear function, you can see that is a function because each value of x has only one value of y related to it.

Second, in a Venn diagram you will see that the set of functions is contained into the set of relationships, this means that all the functions are relationships, but not all the relationships are functions, and we know that this is a non-linear function, so this also must be a relationship.

Then the correct option is C, nonlinear, and a relationship.

Answer:  Choice B

We are 90% confident that the mean weight of all newborn babies is between 6.5 and 8.5 pounds.

Explanatiion:

The idea is that if we generate say 100 confidence intervals, then about 90 of them should capture the true population mean (mu) somewhere in them. Choice A is close to being true, but replace "sample" with "population" to make the statement fully correct.

We don't need a confidence interval to estimate a sample statistic. A confidence interval is used to estimate a population parameter. Choice C is a trick answer and a common misconception about confidence intervals. Choice D is a slight variation of choice A. These facts allow us to rule out choices A, C and D.

Answer:

x= negative three over two or -3/2

Step-by-step explanation:

The inequality that represents the amounts in dollars that could be deposited in a new checking account is a ≥ 75.

This inequality states that "a" must be greater than or equal to 75 dollars, which is the minimum deposit required for opening a new checking account.

the inequality "a ≥ 75" represents the amounts in dollars that could be deposited in a new checking account, where "a" is the amount being deposited and must be greater than or equal to $75.

To represent this mathematically, we can use an inequality. An inequality is a statement that compares two values using symbols like "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "! =" (not equal to).

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The coordinates for point B are 7 = √(x - 5)² + (y - 4)².

What is the distance formula?

The distance formula is used to calculate the length of the line which joins the two points in an x−y plane. The distance between two points is the length of the line joining the two points. If the two points lie on the same horizontal or same vertical line.

Here, we have

Given: Segment AB Has point A located At (5, 4). If The Distance from A To B Is 7 units.

To find the distance between any two the following formula is used.

D = √(x₂ - x₁)² + (y₂ - y₁)²

7 = √(x - 5)² + (y - 4)²

Hence, the coordinates for point B are 7 = √(x - 5)² + (y - 4)².

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Answer:

135 degrees

Step-by-step explanation:

Answer:

It's C) 135

Step-by-step explanation:

You do 180-45 to get your answer. With questions like these or ones ab triangles the whole would be 180 and you add or subtract to get your answers

let Length=l

therefore breadth=l-2

A/Q

P=24

2(l+b)=24

2(l+l-2)=24

2(2l-2)=24

4l-4=24

4l=28

l=28/4

=7

Answer:

The formula for the area of a circle is:

A = πr^2

where A is the area and r is the radius.

In this case, we are given that the area is 4π cm². Solving for the radius, we get:

4π = πr^2

r^2 = 4

r = 2

So the radius of the circle is 2 cm.

The formula for the circumference of a circle is:

C = 2πr

Plugging in the value for the radius, we get:

C = 2π(2) = 4π

Therefore, the circumference of the circle is 4π cm.

By factoring out this common factor, we obtain the simplified expression 0.006(25c - 12).

We can start by determining the common factor between the two terms in order to factor the phrase 0.15c - 0.072. The common factor in this situation is 0.006, which we may factor out to obtain:

0.15c - 0.072 = 0.006(25c - 12) (25c - 12)

As a result, factoring the expression 0.15c - 0.072 gives 0.006 (25c - 12).

It is possible to utilise this factored form to further simplify calculations or to resolve equations that contain this statement. If we needed to find c in the equation 0.15c - 0.072 = 0, for instance, we could use the factored form to obtain:

0.006(25c - 12) = 0

25c - 12 = 0

c = 12/25

In conclusion, factoring the expression 0.15c - 0.072 involves finding the common factor between the two terms, which is 0.006. By factoring out this common factor, we obtain the simplified expression 0.006(25c - 12).

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An equation that mode the relationship between thee two variable is y=2x+3 .

Let x represent the number of 6-month period worked

Let y represent the total number of paid vacation day

According to the question,

When he started work, he was given three paid day of vacation. For each six-month period he pay at the job, his vacation is increased by two day.

Each year has 2 six-month periods. After 4.4 years Roberto will have worked 8.8 six-month periods. He will have been given vacation days for each of the 8 whole working periods he has completed. x=8 y=2*8+3 y=19

An equation that mode the relationship between thee two variable is y=2x+3 (Total vacation time equals 2 days times x plus the 3 days he was given at the start).

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Answer:

C i think

Step-by-step explanation:

Answer:

w = -15

Step-by-step explanation:

-5w = 7 - 4w + 8

Grouping like terms together,

-5w+4w = 7+8

-w = 15

w = -15

Answer:

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

Step-by-step explanation:

We can find the function f(x) by integrating f'(x) with respect to x:

â«f'(x) dx = â«(2/(x^3) + 4e^x + 5) dx

f(x) = -1/x^2 + 4e^x + 5x + C

To find the constant C, we can use the given initial conditions:

f(-1) = 1 = -1/(-1)^2 + 4e^(-1) - 5 + C

C = 1 + 1/1 - 4e^(-1)

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

Therefore, the function f(x) is:

f(x) = -1/x^2 + 4e^x + 5x + 1 + 1/x - 4e^(-1)

Answer:

10x^2 + 3x - 2

Step-by-step explanation:

Answer:

−2.5f−21.65

Step-by-step explanation:

Answer:

Kiki earned $614 in three days.

Step-by-step explanation:

Given that:

Per day salary of Kiki = $150

Commission = 8% of sales

Worth of sold items = $350+$500+$1200 = $2050

Amount of commission = \(\frac{8}{100}*2050\\\)

Amount of commission = 0.08*2050 = $164

Total amount earned in three days = Base salary per day * Number of days + Commission

Total amount earned = 150*3 + 164

Total amount earned = 450 + 164 = $614

Hence,

Kiki earned $614 in three days.

Answer:

614

Step-by-step explanation: please mark brainliest

The midpoints of A(-3,-9) and B (-8,-2) is the coordinate points (-5.5, -3.5)

Coordinate points are written in the form (x, y). The midpoint of two points (x1, y1) and (x2, y2) is expressed as:

M(x, y) ={(x1+x2)/2, (y1+y2)/2}

Given the following coordinates A(-3,-9) and B (-8,-2)

M(x, y) = {(-3+(-8))/2, (-9-(-2))/2}

M(x, y) = {(-3-8)/2, (-9+2)/2}

M(x, y) = (-11/2, -7/2)

M(x, y) = (-5.5, -3.5)

Hence the midpoints of A(-3,-9) and B (-8,-2) is the coordinate points (-5.5, -3.5)

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The standard deviation of the resulting data set would be 14.

If each value in a data set is multiplied by a constant, the standard deviation is also multiplied by that constant.

Therefore, if each value in a data set with a standard deviation of 8 is multiplied by 1.75, the standard deviation of the resulting data set would be:

New standard deviation = 8 x 1.75 = 14

Standard deviation is a measure of the amount of variation or dispersion in a set of data. It is calculated by taking the square root of the variance, which is the average of the squared differences from the mean.

Multiplying each value in a data set by a constant will stretch or compress the data set, but it will not change the shape of the distribution. So, if the original data set had a normal distribution (i.e., a bell-shaped curve), the resulting data set will also have a normal distribution.

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Answer:

1 and 2/3

Step-by-step explanation:

1+1=2 and 2/3 +2/3 = 4/3 so all is 3 and 1/3

Answer:

1 2/3 or 5/3

Step-by-step explanation:

3 1/3=10/3 (10/3)/(2/1)=(10/3)/(1/2)=10/6=5/3 Improper:5/3 Mixed:1/23

The correct answer is E "None of the above" since none of the given options (310, 320, 330, 340) corresponds to the calculated safety stock of 6.

To determine the safety stock needed to achieve a 95% customer service level, we need to consider the lead time variability and the desired service level.

Mean lead time = 3 weeks

Standard deviation of lead time = 2 weeks

Desired service level = 95% (or a 5% risk of stockouts)

To calculate the safety stock, we can use the formula:

Safety Stock = (Z * Standard Deviation of Lead Time) * Square Root of Lead Time

Where Z is the Z-score corresponding to the desired service level.

Step 1: Find the Z-score corresponding to a 95% service level.

Using a standard normal distribution table or a statistical calculator, we find that the Z-score for a 95% service level is approximately 1.645.

Step 2: Calculate the safety stock.

Safety Stock = (1.645 * 2) * sqrt(3)

= 3.29 * 1.73

≈ 5.69

Rounding up to the nearest whole number, the safety stock needed to achieve a 95% customer service level is approximately 6.

Therefore, the correct answer is E: "None of the above" since none of the given options (310, 320, 330, 340) corresponds to the calculated safety stock of 6.

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Answer:

x ≥ 5

Step-by-step explanation:

5x+3-2x≥18

5x-2x+3≥18

3x+3≥18

(3x+3)+(-3)≥18+(-3)

3x+3-3≥18-3

3x≥15

3x/3≥15/3

x≥5

The three inside angles need to equal 170 when added together.

When two sides are the same which is shown by the little lines through the sides the two bottom angles are the same.

1. X = 170-80-80 = 20

2. X = 180-75-75 = 30

3. X = 180-70 = 110/2 = 55

Step-by-step explanation:

1) x+80°+80°=180°

x=180°-160°

x=20°.

2) as it is a isosceles triangle, y =75°.

x+75°+75°=180°

x=180°-150°

x=30°.

3) 2x+70°=180°

2x=110°

x=55°.

hope all these helps you.