The enthalpy of vaporization of Stustance X is 19.kJ​/mol and its normal boiling point is 128 . °C. Calculate the vapor pressure of X at −73. " C. Round your answer to 2 significant digits.

Answer:

12/6 simplified to lowest terms is 2/1.

Step-by-step explanation:

Divide both the numerator and denominator by the HCF

12 ÷ 6

6 ÷ 6

Reduced fraction:

12/6 simplified to lowest terms is 2/1.

Answer: 2:1

Step-by-step explanation:

12:6

Both left and right can be divided by 6, like a fraction, reduce.

= 2:1

Answer:

-2

Step-by-step explanation:

17.8 + f =

17.8 + (-19.8)

= -2

Answer:

r = radius

h = height

s = slant height

V = volume

L = lateral surface area

B = base surface area

A = total surface area

π = pi = 3.1415926535898

√ = square root

Calculator Use

This online calculator will calculate the various properties of a right circular cone given any 2 known variables. The term "circular" clarifies this shape as a pyramid with a circular cross section. The term "right" means that the vertex of the cone is centered above the base. Using the term "cone" by itself often commonly means a right circular cone.

Units: Note that units are shown for convenience but do not affect the calculations. The units are in place to give an indication of the order of the results such as ft, ft2 or ft3. For example, if you are starting with mm and you know r and h in mm, your calculations will result with s in mm, V in mm3, L in mm2, B in mm2 and A in mm2.

Below are the standard formulas for a cone. Calculations are based on algebraic manipulation of these standard formulas.

Circular Cone Formulas in terms of radius r and height h:

Volume of a cone:

V = (1/3)πr2h

Slant height of a cone:

s = √(r2 + h2)

Lateral surface area of a cone:

L = πrs = πr√(r2 + h2)

Base surface area of a cone (a circle):

B = πr2

Total surface area of a cone:

A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

Circular Cone Calculations:

Use the following additional formulas along with the formulas above.

Given radius and height calculate the slant height, volume, lateral surface area and total surface area.

Given r, h find s, V, L, A

use the formulas above

Given radius and slant height calculate the height, volume, lateral surface area and total surface area.

Given r, s find h, V, L, A

h = √(s2 - r2)

Given radius and volume calculate the height, slant height, lateral surface area and total surface area.

Given r, V find h, s, L, A

h = (3 * v) / (πr2)

Given radius and lateral surface area calculate the height, slant height, volume and total surface area.

Given r, L find h, s, V, A

s = L / (πr)

h = √(s2 - r2)

Given radius and total surface area calculate the height, slant height, volume and lateral surface area.

Given r, A find h, s, V, L

s = [A - (πr2)] / (πr)

h = √(s2 - r2)

Given height and slant height calculate the radius, volume, lateral surface area and total surface area.

Given h, s find r, V, L, A

r = √(s2 - h2)

Given height and volume calculate the radius, slant height, lateral surface area and total surface area.

Given h, V find r, s, L, A

r = √[ (3 * v) / (π * h) ]

Given slant height and lateral surface area calculate the radius, height, volume, and total surface area.

Given s, L find r, h, V, A

r = L / (π * s)

h = √(s2 - r2)

Step-by-step explanation:

this is my answer on cone question

The sample's data values ought to be unrelated to one another. The sample data need to be consistent. Data from the quantitative ordered pair sample should be gathered at random or in a way that is representative of the overall population. The sample's data values ought to be unrelated to one another.

A confidence interval is a much better tool to use if we wish to communicate the level of uncertainty surrounding our point estimate (CI). A confidence interval (CI) is a symmetrical range of values where the results of repeated, related experiments are likely to fall. The middle of this range corresponds to our point estimate.

Confidence intervals, which describe how closely study results match reality or how dependable they are based on statistical theory, are regularly mentioned in scientific publications.

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Answer:

B

Step-by-step explanation:

The exterior angles of the triangle sum to 360° , then

? + 107° + 143° = 360°

? + 250° = 360° ( subtract 250° from both sides )

? = 110° → B

The problem requires finding the number of ways to select five media consultants, given that at least four seniors are included. There are seven juniors and eight seniors to choose from. There can be two cases when at least four seniors are selected.

In case 1, exactly four seniors and one junior need to be selected. The number of ways to select four seniors from eight seniors is C(8,4) = 70. The number of ways to select one junior from seven juniors is C(7,1) = 7. Therefore, the total number of ways to select five media consultants with exactly four seniors is 70 × 7 = 490.

In case 2, all five media consultants selected are seniors. The number of ways to select five seniors from eight seniors is C(8,5) = 56. Therefore, the total number of ways to select five media consultants with all seniors is 56.

The total number of ways to select five media consultants such that at least four seniors are included is the sum of the number of ways to select five media consultants with exactly four seniors and the number of ways to select five media consultants with all seniors, which is 490 + 56 = 546.

Hence, the total number of ways to select five media consultants such that at least four seniors are included is 546.

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Answer: The value of the integral is -1.

Step-by-step explanation:

We want to evaluate the integral : ∫∫r 6x√(1-y^3) dA

where r is the triangle enclosed by the x-axis, y-axis, and the line y = 1.

To set up the double integral, we need to determine the bounds of integration for x and y.

Since the triangle is enclosed by the x-axis, y-axis, and the line y = 1, we know that the bounds for y are from 0 to 1.

For x, we know that it varies between the y-axis and the line y = x, so the bounds for x are from 0 to y.

Therefore, we can set up the double integral as: ∫(y=0 to 1) ∫(x=0 to y) 6x√(1-y^3) dx dy

Now we integrate with respect to x: ∫(y=0 to 1) [3x^2√(1-y^3)]_0^y dy= ∫(y=0 to 1) 3y^2√(1-y^3) dy

At this point, we can make the substitution u = 1 - y^3, du = -3y^2 dy, which gives:= -∫(u=1 to 0) √u du

To integrate this expression, we make the substitution w = √u, dw = 1/(2√u) du, which gives:

= -2∫(w=1 to 0) w dw

= -[w^2]_1^0

= -1

Therefore, the value of the integral is -1.

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Answer:

x<-4

Step-by-step explanation:

MARK AS BRAINLIST!!

Answer:

  16.  x = 18

  17.  x = 26 2/3

Step-by-step explanation:

16. The angle bisector divides the sides proportionally:

  9/18 = x/36

  x = 36(9/18)

  x = 18

__

17. The parallel lines divide the transversals proportionally:

  20/6 = x/8

  x = 8(20/6) = 160/6

  x = 26 2/3

Answer:

18

26.7

Step-by-step explanation:

16.

9/18= x/36

x= 36*9/18= 18

17.

20/6= x/8

x= 20*8/6

x= 26.7

The makeup artist will need approximately 7.296π square inches of gift wrap to wrap 3 lipsticks. Rounded to two decimal places, the answer is 19.59π square inches.

The formula for the surface area of a cylinder is:

SA = 2πr² + 2πrh

where r is the radius and h is the height of the cylinder.

For one lipstick, the surface area is:

SA = 2π(0.4)² + 2π(0.4)(2.2)

SA = 1.024π + 1.408π

SA = 2.432π square inches

To wrap 3 lipsticks, the total surface area would be:

SA = 3(2.432π)

SA = 7.296π square inches

Therefore, the makeup artist will need approximately 7.296π square inches of gift wrap to wrap 3 lipsticks. Rounded to two decimal places, the answer is 19.59π square inches.

So the correct option is: 19.59π square inches.

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Answer:

m=9

Step-by-step explanation:

3m-6-2m=3

Combine like terms

3m-2m=1m

1m-6=3

Add 6 to both sides

1m=9

Divide both sides by 1

m=9

Hi there! Your answer is m = 9

Please see the explanation for a clear understanding to the problem.

Any questions about the answer/explanation, feel free to ask in comments! :)

Step-by-step explanation:

Goal

Given

\(\Large{3m-6-2m=3}\)

Step 1

Like terms are the terms have same variables. For example, 2m and 3m. 2m and 3m both are like terms because they both have same variable which is m-term.

But 2m and 3a are not like terms because 2m has m-term as a variable but 3a has a-term as a variable. Both are terms but not like terms.

From the equation:

\(3m-2m=3+6\)

Since we combine like terms, we can't combine a constant with a variable so we move to the side where they are alike.

Evaulate 3m-2m = m and 3+6 = 9

\(m = 9\)

There aren't really much steps solving this. The next step is going to be how to check an answer. It's useful when you are not certain or sure about the answer that you get. If you are not certain on the answer, this step is highly advised for a beginner.

Optional Steps - Answer Check

Step 2

The step is optional as said. From the equation:

\(3m-6-2m=3\)

We can do this two ways which are when we simplify the equation then substitute in the value of m or we substitute m-value first then simplify/evaluate.

I will be demonstrating these two steps to you.

Step 2.1

\(3m-6-2m=3\\3m-2m=3+6\\m=9\\9=9\)

Step 2.2

\(3m-6-2m=3\)

Substitute m = 9 in the equation.

\(3(9)-6-2(9)=3\\27-6-18=3\\9-6=3\\3=3\)

Notice that no matter which method you use, you'd still get the same answer. Since the equation is true for m = 9. Therefore, the solution is m = 9.

Answer:

10

Step-by-step explanation:

If no base is written, the common logarithm is implied.

Answer:

the value of x will depend on the base of the logarithm.

Step-by-step explanation:

The base of a logarithm is the number that is used as a factor in the exponential equation that defines the logarithm. For example, in the logarithmic equation log10(x) = 100, the base is 10.

In the equation log(x) = 100, the base of the logarithm is not given. In order to solve for x, we need to know the base of the logarithm. Without this information, we cannot find the value of x.

For example, if the base of the logarithm is 10, we can rewrite the equation as log10(x) = 100, and then use the following property of logarithms to solve for x:

log10(x) = 100

10^(log10(x)) = 10^100

x = 10^100

On the other hand, if the base of the logarithm is 2, we can rewrite the equation as log2(x) = 100, and then use the following property of logarithms to solve for x:

log2(x) = 100

2^(log2(x)) = 2^100

x = 2^100

Answer:

6

Step-by-step explanation:

To find the hours of labor it took to repair the car, we need to subtract the cost of parts from the total cost and then divide the result by the cost per hour of labor.

So, $340 - $100 = $240 was spent on labor.

$240 ÷ $40 per hour = 6 hours of labor.

Therefore, the answer is OB. 6 hours.

Answer:

1. B

2. Seven Hundred thousand nine hundred and four

Step-by-step explanation:

Answer:

6

Step-by-step explanation: first convert 4 1/2 into an improper fraction: 9/2

9/2 ÷ 3/4 = 9/2 · 4/3 (multiply fractions)

36/6

6

To find the equation for the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k, we can use the formula for the equation of a plane which is Ax + By + Cz = D.

The equation of the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k is:
6x + 2y + 7z = 77

This is further explained as follows:

The equation of a plane is given by:
Ax + By + Cz = D
where A, B, and C are the components of the normal vector, and D is a constant. To find A, B, and C, we can use the components of the given normal vector n=6i+2j+7k.

Therefore we have:
A = 6, B = 2, C = 7
Now, substitute the values of A, B, and C into the equation:
6x + 2y + 7z = D

To find the value of D, we can substitute the coordinates of the given point p0=(7,7,3) into the equation and solve for D. So, we have:
6(7) + 2(7) + 7(3) = D
42 + 14 + 21 = D
D = 77

Therefore, the equation of the plane through the point p0=(7,7,3) and normal to the vector n=6i+2j+7k is:

6x + 2y + 7z = 77

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Answer:

x=0

y=7

Step-by-step explanation:

Divide 6x-4y=-28 by -2..... -3x+2y=14

3x+5y=35

-3x+2y=14

--------------

7y=49

y=7

6x-4*7=-28

x=0

Answer:

there r more students who way 60-69 kilograms and there r less students who way 90-100 kilograms

Step-by-step explanation:

Answer:

105

Step-by-step explanation:

1,000 divided by 3.5% is 35

35 x 3 is 105

Since you are just asking for just the interest and not the total the answer is 105

The interest that Amy should pay is $105.

Given that,

Based on the above information, the calculation is as follows:

\(= 1000 \times 3.5\% \times 3\)

= 105

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The Angle ∠MTU from the figure is 65°

The study of shapes and their measurements falls under the umbrella of geometry, a subfield of mathematics. It also emphasizes how the shapes are arranged in relation to one another and their spatial characteristics. We are aware that geometry is divided into 2D and 3D categories. All geometrical shapes are first created by the intersection of points, lines, rays, and plane surfaces. The distance measured between two lines is referred to as a "Angle" when the rays or lines converge at a single point.

Given,

∠STM=31X-3;

∠MTU=20X+5;

∠STU=155°;

From the figure we can say that

∠STU= ∠STM+∠MTU;

⇒ 155=31x-3+20x+5;

⇒155=51x+2;

⇒x=3;

Now substitute x in ∠MTU;

⇒∠MTU=20(3)+5=65°

The Angle ∠MTU from the figure is 65°

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part c:

100-3t = 64

100-64 = 3t

36 = 3t

t = 12

part d:

1/2 (x-5) = 9

x-5 = 9 / (1/2)

x-5 = 18

x = 23

Answer:

I think it C if it not please don't report me

Given the equation:

-39 = 4w + 7(w-3)

Let's solve the equation for w.

To solve take the following steps.

• Step 1.

Apply distributive property

• Step 2.

Combine like terms

• Step 3.

Add 21 to both sides

Step 4.

Divide both sides by 11

ANSWER:

w = -1.63

To provide an accurate answer, I would need more context about the data and the research question being asked. However, I can provide a brief explanation of each test option:

a. Single sample t-test: Used when comparing a sample mean to a known population mean.
b. Independent t-test: Used when comparing the means of two independent groups.
c. Paired t-test: Used when comparing the means of two related groups or repeated measures.
d. One-way ANOVA: Used when comparing the means of three or more independent groups.

Please provide more information about the data and research question so I can recommend the appropriate test to analyze the data.

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Multiplying a negative and a positive equals a negative: (-) × (+) = (-)

\( - 9 < - \frac{ 1}{5} x\)

Multiplying both side of the inequality by -5 and flip the inequality sign:

\(( - 5) \times ( - 9) = 45\)

\(45 > x\)

Now, swap the sides of the inequality and flip the inequality sign:

\(x < 45\)

The degrees of freedom for the one-way between-subjects ANOVA would be (k-1) = (4-1) = 3 for the between-group variability and (n-k) = (22-4) = 18 for the within-group variability, giving a total of (k-1)+(n-k) = 21 degrees of freedom.

A researcher conducts a study with k = 4 groups and n = 22 participants in each group. In a one-way between-subjects ANOVA, the degrees of freedom can be calculated using the following formulas:

1. Degrees of freedom between groups (df_between) = k - 1
2. Degrees of freedom within groups (df_within) = N - k, where N is the total number of participants.

First, let's calculate the total number of participants, N = k * n = 4 * 22 = 88.

Now, we can find the degrees of freedom:
1. df_ between = 4 - 1 = 3
2. df_ within = 88 - 4 = 84

It's important to note that degrees of freedom refer to the number of independent pieces of information that can be used to estimate a parameter, and they are important for determining the statistical significance of results and the level of freedom a researcher has in interpreting the data.

So, the degrees of freedom for the one-way between-subjects ANOVA are 3 (between groups) and 84 (within groups).

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Answer:

49

Step-by-step explanation:

10 to 23 is 13, and 23 to 36 is 13. so you just add 13 to 36 to get 49

We have the following expression

we have 2 terms, one of them is

and the other one is

We can note that (3v-2) is repeated on both terms, so we can factorize (3v-2) in both terms, which gives

so this equivalent to:

therefore, the answer is: