Which one’s are not correct and what did they do wrong

Answer:141.3cm.

Step-by-step explanation:

Answer:

F = 9/5C + 32

Step-by-step explanation:

F = 9/5C + 32

Since F means Fahrenheit and C means Celsius

Therefore the answer is already written

Answer: F = 9/5C + 32

Answer: C = 5/9 ( F - 32 )

Step-by-step explanation:

i dont know to do the 5 over 9 on the computer but thats the answer

Edmentum Answer

\( \sf - \frac{2}{3} ( \frac{3}{8} x + 9) = \frac{3}{5} ( \frac{5}{12} x + 10)\)

\( \sf \: - 10( \frac{3}{8} x + 9) = 9( \frac{5}{12} x + 10)\)

\( \sf \: - \frac{15}{4} x - 90 = 9( \frac{5}{12} x + 10)\)

\( \sf \: - \frac{15}{4} x - 90 = \frac{15}{4} x + 90\)

\( \sf \: - 15x - 360 = 15x + 360\)

\( \sf \: - 15x - 360 - 15x = 360\)

\( \sf \: - 15x - 15x = 360 + 360\)

\( \sf \: - 30x = 720\)

\( \boxed{ \tt \: x = - 24}\)

The school has $6,375 left to buy supplies for next year's play.

Let's "a" represents the number of adults and "c" represents the number of children. We can then use these variables to represent the amount of money collected from their tickets.

The amount of money collected from adults is given as $8 for each adult's ticket. So, the total amount collected from adults can be represented as 8a. Similarly, the amount of money collected from children is given as $3 for each child's ticket. So, the total amount collected from children can be represented as 3c.

We are also given that there were 80 adults and 20 children at the school play. We can use these numbers to create two equations:

a + c = 100 (equation 1)

80a + 20c = total amount collected from tickets (equation 2)

By using substitution method to solve these equations. We can rearrange equation 1 to get c in terms of a:

c = 100 - a

We can then substitute this expression for c in equation 2:

80a + 20(100 - a)

Simplifying the above equation, we get:

60a + 2000 = total amount collected from tickets

We know that $125 was donated to the local theater program. So, the amount of money left to buy supplies for next year's play can be represented as:

total amount collected from tickets - $125

Substituting the value of total amount collected from tickets from the above equation, we get:

60a + 2000 - $125

Simplifying the above equation, we get:

60a + 1875 = amount left to buy supplies

By substituting the value of "a" from equation 1 to get:

60(80) + 1875 = amount left to buy supplies

Simplifying the above equation, we get:

$6,375 = amount left to buy supplies

Therefore, the school has $6,375 left to buy supplies for next year's play.

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Complete Question is There were 80 adults and 20 children at a school play. The school collected $8 for each adult's ticket and $3 for each child's ticket. The school donated $125 of the money from tickets to local theater program and used the remaining money to buy supplies for next year's school play. How much money does the school have to buy supplies for nest year's play?  

The equation that represents the partial sum of the geometric series is 125, 25, 5, 1

Given the partial sum of a geometric sequence expressed as:

\(\sum\left { n=4 \atop {n=1}} \right. 125(\frac{1}{5} )^{n-1}\)

If n = 1, the

a(1) = \(125(\frac{1}{5} )^{1-1}\\\)

a(1) = \(125(\frac{1}{5} )^{0}\\\)

a(1) = 125

If n = 2

a(2) = \(125(\frac{1}{5} )^{2-1}\\\)

a(2) = \(125(\frac{1}{5} )^{1}\\\)

a(2) = 25

If n = 3

a(3)= \(125(\frac{1}{5} )^{3-1}\\\)

a(3) = \(125(\frac{1}{5} )^{2}\\\)

a(3) = 5

If n = 4

a(4)= \(125(\frac{1}{5} )^{4-1}\\\)

a(4) = \(125(\frac{1}{5} )^{3}\\\)

a(4) = 1

Hence the equation that represents the partial sum of the geometric series is 125, 25, 5, 1

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Answer:

a

Step-by-step explanation:

The solution to the equation x² + 3x = -25 by completing the square is:

x = -3/2 ± √(-91)/2, where √(-91) represents the square root of -91.

To solve the equation x² + 3x = -25 by completing the square, we follow these steps:

Step 1: Move the constant term to the other side of the equation:

x² + 3x + 25 = 0

Step 2: Take half of the coefficient of x, square it, and add it to both sides of the equation:

x² + 3x + (3/2)² = -25 + (3/2)²

x² + 3x + 9/4 = -25 + 9/4

Step 3: Simplify the equation:

x² + 3x + 9/4 = -100/4 + 9/4

x² + 3x + 9/4 = -91/4

Step 4: Rewrite the left side of the equation as a perfect square:

(x + 3/2)² = -91/4

Step 5: Take the square root of both sides of the equation:

x + 3/2 = ±√(-91)/2

Step 6: Solve for x:

x = -3/2 ± √(-91)/2

The solution to the equation x² + 3x = -25 by completing the square is:

x = -3/2 ± √(-91)/2, where √(-91) represents the square root of -91.

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Answer:

x=19

3x+123= 180

3x =180-123

3x =57

x=57/3

x=19

Chase and Simon (1973) conducted a study on the memory of chess novices and experts for positions of chess pieces on a chessboard. They found that although experts generally have a better memory for chess positions than novices, novices performed equally or even better than experts when asked to recall random arrangements of chess pieces on the chessboard, even if the arrangements couldn't occur in a real game of chess.

One possible explanation for this phenomenon is that experts rely heavily on their knowledge of typical chess positions and patterns to remember the positions of the pieces. However, when the pieces are arranged randomly, these patterns are disrupted, and experts may struggle to apply their existing knowledge effectively. On the other hand, novices may not have developed strong patterns or strategies yet, so they approach the task with a more flexible mindset and are less affected by the random arrangement. They may use more general memory strategies, such as chunking or grouping the pieces together, which can be useful for recalling random arrangements.
In summary, novices may perform as well as experts when the pieces are arranged randomly because they rely less on established patterns and can use more general memory strategies to recall the positions.

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Answer: Only Kayla

Step-by-step explanation: i took the test

Kayla states correct statement that Andy is constructing the inscribed circle of the triangle.

Constructing the circumscribed circle of triangle ABC,

So that would be a circle that touches vertices the three vertices of the triangle .

We can construct using it using a compass and a straight edge, or a virtual compass and a virtual straight edge .

So what we want to do is center the circle at the perpendicular bisectors of the sides or sometimes that's called the circumcenter of the triangle.

To construct where the perpendicular bisectors of the sides are ,So let me put a circle over here whose radius is longer than this side right over here .

Now let get one that has the same size so let make it the same size as the one i just did.

And allow to construct a perpendicular bisector. If go through that point and this point right over here, this bisect the side over here, and its at a right angle.

Now lets do that for the other sides,  if i move this over here and  I really just have to do it for one, of the other sides.

Because the intersection of two lines is going to give a point . so can do it for this side right over here.

So let me add a other straight edge right over here. so going to go through the point , so that's the perpendicular bisector. of the side right over here. and i could do the third side and it should intersect at that point .

I am not ultra , ultra precise but closing enough. and now i just have to center one of these circle .

And move the circle to the circumcenter and adjust its radius so that its get close to touching .

The three sides the three vertices of the triangle ABC .

Kayla state that Andy is constructing the inscribed circle of the triangle . This is the correct.

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Answer:

44398.84

Step-by-step explanation:

17,000e^(0.06)(16)

it helps to use a desmos scientific calculator

Answer:

Original volume = (4/3)π(6^3) = 288π

New volume = (4/3)π(18^3) = 7,776π

7,776π ÷ 28π = 27

When the radius of a sphere is tripled, the volume of the new sphere is 27 times the volume of the old sphere.

Answer:

it's a function

Step-by-step explanation:

the rule is you can repeat y values but not x values

this would be graphed as a horizontal line, which is still a function.

Answer:

-8/25

Step-by-step explanation:

Since the sum of two fractions x and 23/25 is 3/5, the formula for finding x would be 3/5 - 23/25 = x. Simply calculate this and we get -->

-8/25

hope this helps!

Answer:

x = -8/25

Step-by-step explanation:

x + 23/25 = 3/5

Get a common denominator

x + 23/25 = 3/5 *5/5

x + 23/25 = 15/25

Subtract 23/25 from each side

x = 15/25 - 23/25

x = -8/25

To reach a 99% confidence level, a lot of effort will be needed. A 1% chance of wrong acceptance is acceptable to the superior because confidence levels and this risk go hand in hand.

Your sample size and variability will determine how precise your statistics are.

Tighter confidence intervals with smaller error margins are produced by greater sample sizes or lower variability. Wider confidence intervals and greater error margins are produced by smaller sample sizes or increased variability.

The interval width depends on the degree of confidence. That interval won't be as narrow if you desire a higher degree of confidence. At 95% or higher confidence, a narrow interval is preferred.

A 99% CI is going to be wider than a 95% CI from the same sample. Given that the wider interval would have a higher possibility of having the genuine population value, this makes sense.

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Option (A) Names of TV shows taped in New York are an example of qualitative data. Qualitative data is descriptive in nature and does not involve numerical values or measurements.

It deals with qualities or attributes that cannot be expressed numerically. In this case, the names of TV shows are characteristics that describe the nature of the data. Quantitative data, on the other hand, is numerical data that can be measured and expressed in numbers. A parameter is a measurable factor or variable that can be used to define a system, while statistics is a branch of mathematics that deals with data collection, analysis, and interpretation. In conclusion, since the names of TV shows are descriptive in nature and do not involve numerical values, they are an example of qualitative data.

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Answer:0.0049

Step-by-step explanation: You move the decimal 3 places to the left because its negative which gives you 0.0049

See attachment for math work and answer.

The solution in the first and second quadrants as follows:sin θ = 3/5θ = sin⁻¹(3/5)So,θ = 36.87° or 143.13°

The given trigonometric equation is 10 sin θ - 5 sin θ = 3. Let's simplify it to solve it further.10 sin θ - 5 sin θ = 3(10 - 5) sin θ = 3sin θ = 3/5

We need to find the solution of the equation in the interval [0°, 360°]. We know that the sine function is positive in the first and second quadrants. Therefore, we can restrict the solution in the first and second quadrants as follows:sin θ = 3/5θ = sin⁻¹(3/5)So,θ = 36.87° or 143.13°

These are the two solutions of the equation in the interval [0°, 360°]. Thus, the algebraic method has given us the solution. We just need to keep the restricted interval in mind to obtain the solution. Answer: Therefore, the answer is as follows:θ = 36.87° or 143.13°.

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Please find attached photograph for your answer.

Hope it helps.

Do comment if you have any query.

Answer:

Step-by-step explanation:

Let the power is x, then we have the following inequality

Solving we get

Answer:

An answer is twenty.

Step-by-step explanation:

0.35^20 is the expression the equation would be 0.35^20=7.609

or: 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times 0.35 times... until you multiply 0.35 times 0.35 twenty times. Not 0.35 times 20, 0.35 times 0.35 twenty times, don't forget to move the decimal! An exponent is 20.

hope this helps!

Answer: 67

Step-by-step explanation:

We see a pattern where we multiply the number we added by previously by two.

For example, from 5 to 7, it is 2.

From 7 to 11, we add by 4.

From 11 to 19, we add by 8.

From 19 to 35, we add by 16.

This means the next number would be 32, adding 35 by 32 gives us 67,

Answer:

The slope of the line is -10/11

Step-by-step explanation:

To find the slope with points you would use the formula \(m = \frac{y2 - y1}{x2 - x1}\)

Now since the line crosses the y-axis at 17, that would be where the y-intercept is, meaning there is a point at (0, 17).

With that, we can find the slope with (11, 7) and (0, 17) in the formula above

So, \(m = \frac{17 - 7}{0 - 11}\)

which will simplified to, \(m = -\frac{10}{11}\)

So the slope is - 10/11

If the jelly bean is chosen from 10 and the probability that a green jelly bean is chosen at random from a large package of jelly beans is 2/5,then the probability that at most two will be green jelly beans will be 0.1684.

Given that the jelly bean is chosen from 10 and the probability that a green jelly bean is chosen at random from a large package of jelly beans is 2/5.

We are required to find the probability that at most two will be green jelly beans.

Probability is basically the likeliness of happening an event among all the events that are possible. It lies between 0 and 1.

Probability=Number of items/Total items

P(at most two jelly beans)=\(10C_{0}(0.4)^{0} (0.6)^{10}+ 10C_{1}(0.4)^{1} (0.6)^{9}+10C_{2}(0.4)^{2} (0.6)^{8}\)

=0.006+10*0.4*0.01+45*0.16*0.017

=0.006+0.04+0.1224

=0.1684

Hence if the jelly bean is chosen from 10 and the probability that a green jelly bean is chosen at random from a large package of jelly beans is 2/5,then the probability that at most two will be green jelly beans will be 0.1684.

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Answer:

no, 8.33865... is not rational

Step-by-step explanation:

it's an irrational number

Metric measurement are given below:

The meter, liter, and gram are the corresponding base units for length (distance), capacity (volume), and weight (mass) in the metric system. To measure smaller or larger amounts, we use units that are derived from metric units.

The three most used base units in the metric system are the meter, gram, and liter. The liter is a unit of volume equal to 1.05 quarts, the meter is a unit of length equal to 3.28 feet, and the gram is a unit of mass about equivalent to 0.0022 pounds (or roughly the mass of a paper clip).

Given Data

a) 2.4 meters

b. 0.4 kilometers

c. 0.04 hectometers

d. 240 decimeters

_ 40 dekameters

_ 0.24 hectometers

_400 centimeters

_ 2400 millimeters

a) 2.4 meters = 2400 millimeters

b) 0.4 kilometers = 400 centimeters

c) 0.04 hectometers =  40 dekameters

d) 240 decimeters = 0.24 hectometers

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The number of cars that the dealer have for sale is 17 cars.

From the problem given, if the ratio of cars to trucks on the lot is 11 to 33, we can write this as: Cars/Trucks = 11/33

We can also simplify this ratio by dividing both sides by 11:

==> cars/51 = 11/33

Now we can solve for the number of cars:

Cars = (11/33) * 51

Cars = 17. Therefore, the dealer has 17 cars for sale.

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The view factor from the 2 cm side to the 4 cm side of the infinitely long three-sided triangular enclosure is approximately 0.5.

The view factor (F) from Surface A to Surface B can be calculated using the formula:

F = A / (A + B)

where A and B are the areas of Surface A and Surface B, respectively.

The area of a triangle can be calculated using Heron's formula:

Area = sqrt(s * (s - a) * (s - b) * (s - c))

where s is the semi-perimeter of the triangle and a, b, and c are the side lengths of the triangle.

For Surface A:

a = 2 cm

b = 3 cm

c = 4 cm

s = (a + b + c) / 2 = (2 + 3 + 4) / 2 = 4.5 cm

Area_A = sqrt(4.5 * (4.5 - 2) * (4.5 - 3) * (4.5 - 4))

= √(4.5 * 2.5 * 1.5 * 0.5)

=√(5.625) ≈ 2.37 cm²

For Surface B:

a = 2 cm

b = 4 cm

c = 3 cm

s = (a + b + c) / 2 = (2 + 4 + 3) / 2 = 4.5 cm

Area_B = √(4.5 * (4.5 - 2) * (4.5 - 4) * (4.5 - 3))

= √(4.5 * 2.5 * 0.5 * 1.5)

=√(5.625) ≈ 2.37 cm²

Now we can calculate the view factor (F):

F = Area_A / (Area_A + Area_B)

= 2.37 / (2.37 + 2.37)

≈ 0.5

Therefore, the view factor from the 2 cm side to the 4 cm side of the infinitely long three-sided triangular enclosure is approximately 0.5.

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Answer: I don't know if it is multiplication or addition but here are the answers.

Step-by-step explanation:  

$360 * $2.50 * $5.50= 4950

$360 + $ 2.50 + $5.50=368

Answer:

A

Step-by-step explanation:

- 11/8 + (-11/4) = - 11/8 - 11/4 the answer will be negative

-11/8 - (-11/4) = -11/8 + 11/4 the answer will be positive because 11/4 is greater than 11/8

-11/8 × -11/4 = +.. the answer wil be positive... - × - = +

To determine which set of data most likely has a mean closest to 29.5, we need to analyze the shape and position of the histograms in relation to the value 29.5.

Looking at the histograms described:

The first histogram ranges from 9 to 48, and the upward trend starts from 1 and ends at 33, followed by a downward trend. This histogram suggests that there may be values lower than 29.5, which would bring the mean below 29.5.

The second histogram ranges from 15 to 48, with an upward trend from 1 to 30 and then a downward trend. Similar to the first histogram, it suggests the possibility of values lower than 29.5, indicating a mean below 29.5.

The third histogram ranges from 12 to 56, and the upward trend starts from 1 and ends at 32, followed by a downward trend. This histogram covers a wider range but still suggests the possibility of values below 29.5, indicating a mean below 29.5.

The fourth histogram ranges from 15 to 54 and exhibits multiple trends. While it has fluctuations, it covers a wider range and includes both upward and downward trends. This histogram suggests the possibility of values above and below 29.5, potentially resulting in a mean closer to 29.5.

Based on the descriptions, the fourth histogram, with its more varied trends and wider range, is most likely to have a mean closest to 29.5.

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The sum of x squared in the group of 20 people is 720.The sum of x squared in a group of 20 people can be calculated using the mean and standard deviation of the ages.

First, let's find the sum of the ages in the group by multiplying the mean age by the number of people: 20 * 21 = 420.

Next, let's calculate the sum of the squared ages. We'll do this by squaring each age, then adding them up.

Since the standard deviation is given, we can use it to find the variance, which is the average of the squared deviations from the mean.

The variance is equal to the sum of x squared divided by the number of people.

Therefore, we can multiply the variance by the number of people to find the sum of x squared.

To find the variance, we'll square the standard deviation:

6 * 6 = 36.

Now, we'll multiply the variance by the number of people:

36 * 20 = 720.

Therefore, the sum of x squared in the group of 20 people is 720.

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