Which of the fractions below is closest to one?

Answer:

Step-by-step explanation:

let one side be x

and other side be 3x - 4

so perimeter = x + ( 3x - 4 ) + x + ( 3x - 4 )

80cm = 8x - 8

88cm = 8x

11cm = x

x = 11cm

3x - 4 = 3×11 -4

= 29cm

so sides are 11cm and 29cm

Answer:

50% of a number means that we are taking half of a number.  Since 11 is 50% of a number that means that we need to multiply 11 by 2 to get the original number.  When we multiply 11 by 2 we get 22 and that is closest to option A which is 20.

Answer:  Option A, \(20\)

Answer:

Step-by-step explanation:

Answer:

=> 1/4  * \(\pi r^{2}\)

=> 1/4 * 3.14 * 4

=> 3.14

Answer = 3.14

The number of plates required can be determined using the same technique as for part c. The number of plates required is found to be 13

The given distillation problem can be solved using the McCabe-Thiele method, which is a graphical technique used to determine the minimum number of plates, the reflux ratio, and the composition of each of the product streams. The McCabe-Thiele diagram consists of two straight lines that intersect at the q-line.The following are the given data:Mixture to be distilled: 75 mol% methanol and 25% waterOverhead product: 99.99 mol% methanolBottom product: 0.002 mol% methanolFeed: ColdFor each mole of feed, 0.15 mol vapor is condensed at the feed plateReflux ratio at the top of the column:

1.4Reflux at its bubble pointPart a: Minimum number of platesThe minimum number of plates required can be obtained using the McCabe-Thiele diagram. This value is equal to the number of plates on the diagonal line between the intersection of the feed line and the equilibrium curve and the intersection of the equilibrium curve and the operating line. The minimum number of plates required is shown in the diagram below. The minimum number of plates is found to be 6

Part b: Minimum reflux ratioThe minimum reflux ratio required can be obtained using the slope of the operating line. The slope of the operating line is equal to the reflux ratio divided by (reflux ratio + 1). To calculate the minimum reflux ratio, we first need to determine the slope of the equilibrium curve. The slope of the equilibrium curve can be calculated by taking the ratio of the change in the y-coordinate to the change in the x-coordinate. The slope of the equilibrium curve is 3.06. The slope of the operating line is 0.214. The reflux ratio is found to be 1.4.

Part c: Number of plates using a total condenser and a reboiler assuming an average Murphree plate efficiency of 72 percentThe number of plates using a total condenser and a reboiler can be determined using the same technique as for the minimum number of plates. The number of plates required is shown in the diagram below. The number of plates required is found to be 10.

Part d: Number of plates using a reboiler and partial condenser operating with the reflux in equilibrium with the vapor going to a final condenser.

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Answer:

Y\(\frac{y_{2}-y_{1}}{x_2-x_1}\) or Y2-Y1/X2-X1

Step-by-step explanation:

hope this helps

i will not be angry from you if you brainlisted me

Step-by-step explanation:

square of 8 is 64 and square of the 6 is 36

8^2= 8*8=64

6^2= 6*6=36

Information for use to find out if a source is credible when researching the health benefits of standing desks study sample size and article publication date is study sample size and article publication date.

Study sample size is an important factor in determining the credibility of research because a larger sample size increases the power of the study and reduces the likelihood of random error.

Article publication date is also important because research on a topic can become outdated over time and newer studies may have different or more robust findings.

A website popularity or positive product reviews do not necessarily indicate the credibility of the source or the validity of the research. A friend's story about her standing desk is also not considered a credible source of information in scientific research.

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Answer:

T = 0.7(220 – a)

Step-by-step explantion:

Hope it helped

An exponent is a symbol written above and to the right of a mathematical expression to indicate the operation of raising a power.

The value of the given expression is \((xy)^{-13}\) or 1 / \(x^{13} y^{13}\)

It is a symbol written above and to the right of a mathematical expression to indicate the operation of raising a power.

Example: x², y³

x and y are base

2 and 3 are exponents.

We have,

\((xy)^{-8}\) over  x³\(y^{5}\)

This can be written as:

= \(\frac{(xy)^{-8}}{x^{3}y^{5} }\)

Now,

\((xy)^{8}\) = \(x^{-8} \times y^{-8}\)

So,

\(\frac{(xy)^{-8}}{x^{3}y^{5} }\) = \(x^{-8} \times x^{-8}\) / \(x^{3} \times y^{5}\) = \(x^{-8 - 3} \times y^{-8 - 5}\) = \(x^{-11} \times y^{-13}\)

         = \((xy)^{-13}\) or 1 / \((xy)^{13}\)

Thus the value of the given expression is \((xy)^{-13}\) or 1 / \(x^{13} y^{13}\)

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Answer:

(2,17)

Step-by-step explanation:

This is because x is the input and y is the output. All you have to do is create a value for x the substitute it in the equation. Next solve for y 0.5 times 2 is 1, plus 16 is 17. Then just put your values in an order pair.

Answer:

8,20

Step-by-step explanation:

Answer:

$3.72

Step-by-step explanation:

Divide $2.79 by 3

$0.93 is the price of one orange

$0.93 times 4 is $3.72

Hope this helps!

Answer:

False-The angle on a straight line add up to 180 not 360

Step-by-step explanation:

The second part is B. Carring is not a word.

B. Square, A quadrilateral with four congruent sides and four congruent angles is a Square.

A square is a quadrilateral with four congruent sides and four congruent angles (right angles). All sides of a square are equal in length, and all angles are right angles (90 degrees). This makes it a special type of rectangle and a special type of rhombus.

In a rhombus, all four sides are equal in length. A square is also a special type of rhombus in which all four sides are equal and it is also a special type of rectangle with four congruent sides and four congruent angles is a rhombus.

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Answer:

0/21 or 0%

Step-by-step explanation:

There are no purple bows and 21 other bows.

Answer:

0/21 or 0%

Step-by-step explanation:

The expression that correctly calculates the perimeter of the shape is given as follows:

P = 2(6s + πr).

In which:

The perimeter of a square of side length s is given as follows:

P = 4s.

Hence, for three squares, the perimeter is given as follows:

P = 3 x 4s

P = 12s.

The perimeter, which is the circumference of a semicircle of radius r, is given by the equation presented as follows:

C = πr.

Hence the perimeter of two semicircles is given as follows:

C = 2πr.

The perimeter of the entire shape is given by the sum of the perimeter of each shape, hence:

P = 12s + 2πr.

P = 2(6s + πr).

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Answer:

9 inches and 15 inches

Step-by-step explanation:

The height of a trapezoid is 4 in.

Its area is 48 in^2.

Let a be one base and b be the second base.

One base is 6 inches longer than the other. This implies that:

a = 6 + b _________ (1)

The formula for the area of a trapezoid is given as:

\(A = \frac{1}{2}(a + b)h\)

where h = height

From (1), we have that:

\(A = \frac{1}{2}(6 + b + b )h\\ \\A = \frac{1}{2}(6 + 2b )h\)

We have that h = 4 and A = 48 in^2, therefore:

\(48 = \frac {1}{2}(6 + 2b) * 4\\ \\96 = 24 + 8b\\\\8b = 96 - 24 = 72\\\\b = 72 / 8 = 9 in\)

=> a = 6 + 9 = 15 in

The bases are 9 inches and 15 inches long.

Let \(\(a\)\) and \(\(b\)\) be integers such that \(\(ab = 4\)\). We want to prove that \(\((a - b)^3 - 9(a - b) = 0\).\)

Starting with the left side of the equation, we have:

\(\((a - b)^3 - 9(a - b)\)\)

Using the identity \(\((x - y)^3 = x^3 - 3x^2y + 3xy^2 - y^3\)\), we can expand the cube of the binomial \((a - b)\):

\(\(a^3 - 3a^2b + 3ab^2 - b^3 - 9(a - b)\)\)

Rearranging the terms, we have:

\(\(a^3 - b^3 - 3a^2b + 3ab^2 - 9a + 9b\)\)

Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:

\(\(a^3 - b^3 - 3a^2(4) + 3a(4^2) - 9a + 9b\)\)

Simplifying further, we get:

\(\(a^3 - b^3 - 12a^2 + 48a - 9a + 9b\)\)

Now, notice that \(\(a^3 - b^3\)\) can be factored as \(\((a - b)(a^2 + ab + b^2)\):\)

\(\((a - b)(a^2 + ab + b^2) - 12a^2 + 48a - 9a + 9b\)\)

Since \(\(ab = 4\)\), we can substitute \(\(4\)\) for \(\(ab\)\) in the equation:

\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 48a - 9a + 9b\)\)

Simplifying further, we get:

\(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\)

Now, we can observe that \(\(a^2 + 4 + b^2\)\) is always greater than or equal to \(\(0\)\) since it involves the sum of squares, which is non-negative.

Therefore, \(\((a - b)(a^2 + 4 + b^2) - 12a^2 + 39a + 9b\)\) will be equal to \(\(0\)\) if and only if \(\(a - b = 0\)\) since the expression \(\((a - b)(a^2 + 4 + b^2)\)\) will be equal to \(\(0\)\) only when \(\(a - b = 0\).\)

Hence, we have proved that if \(\(ab = 4\)\), then \(\((a - b)^3 - 9(a - b) = 0\).\)

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Answer:

Chris will take 0.75 seconds to return to his starting height of 10 feet.

Step-by-step explanation:

Let the height of Chris be represented by \(h(t) = -16\cdot t^{2}+12\cdot t +10\), where \(h(t)\) is the height in feet and \(t\), the time in seconds. First, we equalize the formula to a height of 10 feet and simplify the resulting expression, that is:

\(-16\cdot t^{2}+12\cdot t +10 = 10\)

\(-16\cdot t^{2}+12\cdot t = 0\)

Then, we simplify the expression by algebraic means:

\(-16\cdot t\cdot \left(t-\frac{3}{4} \right) = 0\)

Roots of the polynomial are, respectively:

\(t = 0\,s\,\lor \,t = 0.75\,s\)

First root represents the initial height of Chris, whereas the second one represents the instant when Christ returns to the same height above the surface of the water. Hence, Chris will take 0.75 seconds to return to his starting height of 10 feet.

Answer:

cilejjwkwkwkwkwkwkw

Answer:

C: 37

Step-by-step explanation:

37 isn't divisible by 3 or 7. 37/3=12 1/3, 37/7=5 2/7

All the others are different ways to write multiplication.

Answer:

2.8888722e+12

Step-by-step explanation:

calculator

To evaluate which of a set of curves fits the data best, you can use the option "c. R2", also known as the coefficient of determination.

R2 is a statistical measure that helps determine the proportion of variance in the dependent variable explained by the independent variable(s) in the regression model. It ranges from 0 to 1, with higher values indicating a better fit of the curve to the data.

To evaluate which of a set of curves fits the data best, we can use the R2 (coefficient of determination) metric. R2 is a statistical measure that represents the proportion of the variance in the dependent variable that is explained by the independent variable(s) in a regression model.

                                         A higher R2 value indicates a better fit of the curve to the data. APE (absolute percentage error), MAPE (mean absolute percentage error), and NPV (net present value) are not appropriate metrics for evaluating the fit of a curve to data. APE and MAPE are typically used to measure forecasting accuracy, while NPV is a financial metric used to determine the present value of future cash flows.

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Answer:

x=26°, y=26°, z=26°

Step-by-step explanation:

x+74=100 (the sum of linear pair)

x=100-74

x=26

x=y=26 (alternate angle)

y=z=26 (vertically opposite angle V.O.A)

Answer:

-4

Step-by-step explanation:

3 is greater than or equal to 2 and less than 6

you are looking for the statement that is correct when subbing in 3 for x

Based on the information that the smallest score in a population is x=5, and the largest score is x=10, the conclusion is that the standard  deviation is going to be smaller than the range of scores.

Given that in a population, the smallest score is x=5, and largest score is x=10, the range of scores is:

Range of scores=largest score-lowest score

                          =10-5

                           =5

Here the range of scores is 5, and the mean of the scores is likely to be between 5 and 10

Standard deviation which refers to the average spread of the distribution,  will now be considered to be smaller since the range of scores is low.

Because standard deviation is found from the mean, if the mean is between x=5 and x=10, the standard deviation must be lower than x=5.

Hence, smaller than the range of scores.

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The probability is \(\frac{11}{30}\) .

What is the probability?

 Probability is the ability to happen. The subject of this area of mathematics is the occurrence of random events. From 0 to 1 is used to express the value. To forecast how likely occurrences are to occur, Probability has been introduced in mathematics.

F= The probability that the dice land on different numbers.

F=(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5)

F = \(\frac{30}{36}= \frac{5}{6}\)

E= The event that at least one lands on 6.

E=(1,6),(2,6),(3,6),(4,6),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)

E= \(\frac{11}{36}\)

What is the probability of E, when given that F has occurred?

P= \(\frac{P(EF)}{P(F)}\) = \(\frac{1-P(EF)}{P(F)}\)

=> P = \(\frac{\frac{11}{36} }{\frac{5}{6} }\) = \(\frac{11}{30}\)

Hence the Probability is \(\frac{11}{30}\) .

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How many fewer models made by himself were donated than those he bought is 72

First step is to calculate the models that was made by Jack

Jack Models =360 × 40%

Jack Models= 144

Second step is to calculate the models that was bought by Jack

Models  bought= 360 – 144

Models  bought= 216

Third step is to calculate the amount of models made donated by  of Jack

Models donated=144 × 25%

Models donated = 36

Fourth step is to calculate the amount of models bought by Jack  donated

Models donated=216 × 50%

Models donated= 108

Now let determine the how many fewer models made by himself were donated than those he bought

Fewer models made=108 – 36

Fewer models made= 72

Inconclusion How many fewer models made by himself were donated than those he bought is 72

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The correct set of possible results would be (0, 1, 0, 0), (1, 2, 1, 0) and (1, 2, 0, 1).

Your approach seems to be correct, but there seems to be a minor mistake in your final list of possible solutions. Let's go through the steps to clarify.

Given the initial conditions z=t=0, you obtained a partial solution (0,1,0,0).

Next, you solved the homogeneous equations for z=1 and t=0, which resulted in a solution (1,1,1,0).

Similarly, solving the homogeneous equations for z=0 and t=1 gives another solution (1,1,0,1).

To find the general solution, you combine the partial solution with the solutions obtained in the previous step, using parameters a and b.

(0,1,0,0) + a(1,1,1,0) + b(1,1,0,1)

Expanding this expression, you get:

(0+a+b, 1+a+b, 0+a, 0+b)

Simplifying, you obtain the following set of solutions:

(0, 1, 0, 0)

(1, 2, 1, 0)

(1, 2, 0, 1)

Therefore, the correct set of possible results would be:

(0, 1, 0, 0)

(1, 2, 1, 0)

(1, 2, 0, 1)

Note that (0, 1, 1, 1) is not a valid solution in this case, as it does not satisfy the initial condition z = 0.

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Answer:

high school and work on the screen and the Two Strings attached to the brain and y to get it from you and your family and friends and family to the gym now I'm just gonna have to be with me for the next day off today