Find the value of x that will make line u parallel to line v. Show all of your work

Answer:

y = 1

x = 4

Step-by-step explanation:

x + 3y = 7 → ( 1 )

2x - y = 7 → ( 2 )

First, let us make x the subject in equation ( 1 ).

x = 7 - 3y  → ( 3 )

Let us find the value of y.

For that let us take equation (1) & replace x with ( 7 - 3y ).

2x - y = 7

2 ( 7 - 3y ) - y = 7

Solve the brackets.

14 - 6y - y = 7

Combine like terms.

14 - 7y = 7

Subtract 14 from both sides.

-7y = 7 - 14

-7y = -7

Divide both sides by -7.

y = 1

Let us find value of x

For that let us take equation (3) & replace y with 1.

x = 7 - 3y

x = 7 - 3 × 1

x = 7 - 3

x = 4

Answer:

3 days.

Step-by-step explanation:

Based on the information provided we see that roughly 60% of the days in January have 6ft+ waves then we would need to use this value to calculate the number of days that are good for surfing. We calculate this by multiplying the number of days that you can surf by 60% using the equation below as r being the actual total amount of days....

r = 6 * 0.60%

r = 3.6

As we can see that there are roughly 3 days that see this amount of wave activity between the 6 chosen dates. We have to round down because we are talking about full days and 3.6 does not meet a fourth full day.

Answer: Hence, by ASA ( Angle side Angle) Rule of congruency two triangles;

Angle ADE = CDF Hence proved.

Step-by-step explanation:Diagram of two triangles are given such that side ED = FD and <AED = < CFD = 90

To Find: TO prove <ADE = <CDF

Solution; In figure ; we can see that <EDA and <FDC are vertically opposite angles and hence are equal.

=> <EDA = <FDC |Vertically opposite angles

<DEA = <CFD = 90 |Given

Also, ED = FD |Given

Hence, by ASA (Angle Side Angle)

Rule of congruency two triangles; <ADE = <CDF

Hence Proved.

Answer:

I think it's y = 3/2x - 5

Step-by-step explanation:

when we multiply the slopes of perpendicular lines, we get -1

Answer:

G

Step-by-step explanation:

Answer: h

Step-by-step explanation:

Using the following change of coordinates,

u(x, y, z) = y - x

v(x, y, z) = z - y

w(x, y, z) = z

we solve for x, y, and z in terms of u, v, and w :

x(u, v, w) = - u - v + w

y(u, v, w) = - v + w

z(u, v, w) = w

We then compute the Jacobian for the transformation,

\(J = \begin{bmatrix} x_u & x_v & x_w \\ y_u & y_v & y_w \\ z_u & z_v & z_w\end{bmatrix} = \begin{bmatrix} - 1 & -1 & 1 \\ 0 & -1 & 1 \\ 0 & 0 & 1 \end{bmatrix}\)

so that det(J) = 1.

Now, the region D transforms to D', where

\(D' = \left\{ (u, v, w) : 0 \le u \le 2 \text{ and } 0 \le v \le 1 \text{ and } 0 \le w \le 4\right\}\)

so the integral is

\(\displaystyle \iiint_D xy \, dV = \iiint_{D'} (-u-v+w) (-v+w) \det(J) \, dV \\\\ = \int_0^2 \int_0^1 \int_0^4 (uv - uw + v^2 - 2vw + w^2) \, dw \, dv \, du \\\\ = \int_0^2 \int_0^1 \left(4uv - 8u + 4v^2 - 16v + \frac{64}3\right) \, dv \, du \\\\ = \int_0^2 \left(\frac{44}3 - 6u\right) \, du \\\\ = \boxed{\frac{52}3}\)

A statistical package is likely to be used with quantitative research but not with qualitative research - True.

The collection and analysis of numerical data, such as survey responses or experimental measurements, is common in quantitative research, and statistical analysis is frequently used to summarise and interpret this data. In quantitative research, statistical software such as SPSS, R, or Stata are widely used to do data analysis and statistical tests.

In contrast, qualitative research often entails gathering and interpreting non-numerical data, such as interview transcripts or observational notes. Although statistical analysis may not be suited for this type of data, several software packages, such as NVivo, MAXQDA, or ATLAS.ti, can be used to manage and analyse qualitative data.

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Answer:2

Step-by-step explanation:

The value of x is 8

A quadrilateral with one pair of parallel sides. It is a typical mathematical shape that is employed in numerous disciplines. The area of a trapezoid is computed by multiplying the height by half of the sum of the lengths of the two bases.

Given that trapezoid PQRS ~ TUVW are similar;

So, VW/RS = UT/QP

      x/12 = 6/9

      x = 8

Therefore, the value of x is 8

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Trapezoid A trapezoid is a four-sided shape with one pair of parallel sides According to the question The value of x is 8

A trapezoid is a four-sided shape with one pair of parallel sides. It has two non-parallel sides, or legs, and two parallel sides, or bases. The bases are usually of different lengths, and the sides are typically not equal. The angles of a trapezoid are not necessarily all the same size, but the two opposite angles are always equal. Trapezoids can be found in everyday objects like the shape of a deck, a rectangular door frame, or a sloped roof. Trapezoids can also be found in geometry, where they are used to calculate the area and perimeter of the shape.

Given that trapezoid PQRS ~ TUVW are similar;
So, VW/RS = UT/QP
     x/12 = 6/9
     x = 8
Therefore, the value of x is 8

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Answer:

20

Step-by-step explanation:

Public opinion data, such as opinion polls, benchmark or tracking polls, entrance and exit polls, can have a significant impact on elections and policy debates.

These polls use various sampling techniques to identify respondents and collect data through mass surveys or focus groups. Sampling errors can occur, but they are usually minimized through proper methodologies. The type and format of questions asked in these polls play a crucial role in shaping the outcomes.

Public opinion data serves as a summary of the collective views and preferences of a population, providing insights into the electorate's sentiment and informing political campaigns and policy debates. Opinion polls, conducted through random or stratified sampling techniques, aim to gauge public opinion on specific issues or candidate preferences. These polls help political parties and candidates understand the concerns and priorities of voters, enabling them to tailor their messages and policies accordingly.

Benchmark or tracking polls, on the other hand, provide longitudinal data by repeatedly surveying the same sample over time. This allows for the analysis of shifting opinions and trends, which can inform campaign strategies and messaging adjustments. Entrance and exit polls, commonly conducted during elections, offer immediate feedback on voters' choices and motivations. They help in understanding the voting patterns of different demographics and identifying key issues that influenced the outcome.

To ensure the reliability of the data, it is crucial to use appropriate sampling techniques that represent the target population accurately. Random sampling, where each individual has an equal chance of being selected, or stratified sampling, which divides the population into relevant groups for representation, are commonly employed methods. However, sampling errors can still occur due to various factors, including non-response bias or sampling bias.

The type and format of questions asked in these polls can significantly impact the results. Careful consideration should be given to the wording, order, and response options provided to minimize bias and capture nuanced opinions. Open-ended questions allow respondents to express their views more freely, while closed-ended questions with pre-determined response options provide standardized data for analysis. The choice of question format should align with the objectives of the poll and the specific information sought.

Overall, public opinion data derived from different types of polls, sampling techniques, respondent identification, and question formats plays a vital role in shaping elections and policy debates. It provides valuable insights into the preferences and concerns of the population, guiding political campaigns, informing policy decisions, and facilitating a more representative and responsive democratic process.

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Answer:

80.5

Step-by-step explanation:

E(z),the expected value of z in which at least one member has a birthday in 12 months is (11/12)^10

Define the random variable Zi’s as

\(Z_{i}\)= 1 : if no member of the club has a birthday in the month

   = 0: otherwise   for, i =1,2, ......,12 .

Now, we have,

= P (\(Z_{i}\) =1) .

=p( no member of the club has a birthday in month i).

= p, say.

Now, there are a total of 10 members in the club and their birthdays are assumed to be independently and uniformly distributed over the 12 months of the year. So, there are 12 possible choices of months for each of the 10 members for their birthday. Thus, the total no. of exhaustive mutually exclusive and equally likely no. of ways of birthdays 12^10.

Again, if no member of the club has a birthday in month 'i'; then, all of their birthdays should be on the remaining (12 - 1) = 11 months of the year. So, there are possible choices of birthday months for each of the 10 members of the club. So, the no. of cases for the event (Zi=1) is 11^10.

So, p(\(Z_{i}\)=1) = Favorable no. of cases for Zi=1) / Total no. of all possible cases

= 11^10 / 12^10

By the classical definition of probability.

= (11/12)^10

p(\(Z_{i}\) = 1) = (11/12)^10

E(Zi).= (11/12)^10

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The domain of the function f(x) = 3x^2 - 6x - 13 is (-∞, ∞).

The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). The range of a function is the set of values that the function assumes.

To determine the domain of the function f(x) = 3x^2 - 6x - 13, we need to consider any restrictions on the values of x that would make the function undefined.

In this case, since x represents the velocity of the boat relative to land, there are no inherent limitations or restrictions on the possible values of x. The domain of the function is therefore all real numbers, or (-∞, ∞).

Therefore, the domain of the function f(x) = 3x^2 - 6x - 13 is (-∞, ∞).

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The percentage οf the mass οf a water mοlecule that is hydrοgen is:

(2.016 u / 18.015 u) x 100% ≈ 11.19%

The percentage is a way οf expressing a number οr prοpοrtiοn as a fractiοn οf 100. It is represented by the symbοl "%".

The atοmic mass unit (u) οf hydrοgen is 1.008 and the atοmic mass unit οf οxygen is 15.999.

Therefοre, the tοtal mass οf οne mοlecule οf water can be calculated as fοllοws:

2 x (atοmic mass unit οf hydrοgen) + 1 x (atοmic mass unit οf οxygen)

= 2 x 1.008 u + 1 x 15.999 u

= 18.015 u

Tο determine the percentage οf the mass οf a water mοlecule that is hydrοgen, we need tο calculate the mass cοntributiοn οf hydrοgen and divide it by the tοtal mass οf the mοlecule, then multiply by 100 tο cοnvert it tο a percentage.

The mass cοntributiοn οf hydrοgen is:

2 x (atοmic mass unit οf hydrοgen)

= 2 x 1.008 u

= 2.016 u

Therefοre, the percentage οf the mass οf a water mοlecule that is hydrοgen is:

(2.016 u / 18.015 u) x 100% ≈ 11.19%

Sο, apprοximately 11.19% οf the mass οf a water mοlecule is hydrοgen

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Answer:

C.) (5,0)

Step-by-step explanation:

You see where the lines cross together. That will be the answer.

The fourth step of the risk assessment process is to determine current level of preparedness/mitigation.

The correct option is C.

A risk assessment is a procedure for identifying potential dangers and analyzing what might happen if one happens. A business impact analysis (BIA) is a procedure that determines the probable consequences of interrupting time-sensitive or important business processes. There are various potential hazards to be mindful of.

The ultimate goal of risk assessments is to improve workplace safety and health. However, to order to accomplish this, your risk assessment process must identify occupational hazards and eliminate or reduce the risks they represent.

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Answer:

50 + 25x = 1600

Step-by-step explanation:

bottom was cut off a bit its 4=b

Answer:

-25

Step-by-step explanation:

7+25−15−42

=7+10−42

=17−42

=−25

Answer:  -25

Step-by-step explanation:

Answer:

3 loaves

Step-by-step explanation:

See attachment for complete question.

Represent Loaves with L and Flour with F

Since L is proportional to F, the relationship can be defined as:

L = kF

Where k represent the constant of proportionality

When L = 4, F = 20

Substitute these values in the above formula.

4 = k * 20

Divide both sides by 20

4/20 = k

⅕ = k

k = ⅕

To solve for 15 cups of Flour, we have:

F = 15

Substitute 15 for F and ⅕ for k in L = kF

L = ⅕ * 15

L = 3

Hence, 3 loaves will be baked using 15 cups of flour

The artist reportedly got $225 or $275 for her paintings this week, depending on the statement provided.

We might, for instance, move to the city. Most likely, he will start classes again in the fall. If we could finish the job by tomorrow, that would be perfect. In the worst-case scenario, we would have to commence the project over.

Let x become the sum the artist got this week for her works in Part A.. The situation is represented by the absolute value equation:

|250 - x| = 25

Part B: To solve the equation, we can split it into two cases:

Case 1: 250 - x = 25

Solving for x, we get:

x = 250 - 25 = 225

Case 2: 250 - x = -25

Solving for x, we get:

x = 250 + 25 = 275

Therefore, the artist received either $225 or $275 for her prints this week.

Part C: The minimum amount the artist received is $225, which is $25 less than her goal of $250. The maximum amount the artist received is $275, which is $25 more than her goal of $250.

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Answer:

the like terms are -13, 17,-8g, and 6g. the terms are all, coefficents are -8 ang 6. constants are 7h

Step-by-step explanation:

Similar to one-step and two-step equations, the basic objective of multi-step problems is to isolate the unknown variable on one side of the equation while maintaining the constant or number on the other side.

Solving a 3-step problem typically involves the following steps:

It can be helpful to break the problem down into smaller parts and solve each part separately. This can make the problem feel more manageable and help you avoid making mistakes.

If you get stuck at any point, it can be helpful to take a break and come back to the problem later, or to ask someone for help.

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Answer:

A

Step-by-step explanation:

because a is 139cm and child is 139 cm not 830000 or not 1.48

Answer:

m = y2 - y1 / x2 - x1

Step-by-step explanation:

Answer:

D & E

Step-by-step explanation:

The constant of proportionality formula is y = kx. In the graph in question, when y = 6, x = 2. Plugging those values into the formula, 6 = k(2), we get that the value of k = 3. So, the correct answer should have a constant of proportionality of 3.

A) When dividing both sides by 6, we get y = 1/3 x. In this equation, k = 1/3, so this is not the answer.

B) k = 1/3 again, so this is not the answer.

C) When y = 6, x = 1. 6 = k(1), so k = 6. So, this is not the answer.

D) When y = 9, x = 3. 9 = k(3), and k = 3. This is the correct value of k. Plugging in other values from the same table give you the correct value of k. This is a correct answer.

E) When y = 15, x = 5. 15 = k(5), and k = 3. This is the correct value of k. Plugging in other values from the same table give you the correct value of k. This is a correct answer.

hope this helps! <3

To solve -8 - 2(-3), we can apply the distributive property of multiplication over addition/subtraction. This means we can multiply -2 by each term inside the parentheses and change the subtraction sign to addition:

-8 + 2(3)

Then we can simplify by multiplying 2 and 3, which gives us:

-8 + 6

Finally, we can combine like terms by subtracting 8 from 6, which gives us:

-2

Therefore, the correct answer is -2.

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