Jubal wrote the four equations below. He examined them, without solving them, to determine which equation has no solution. 7 x + 1 = 7 x+ 1. 3 x + 2 = 3 x minus 2. 4 x + 1 = 3 x + 8. Negative 2 x minus 1 = negative 2 x minus 1. Which of Jubal's equations has no solution? 7 x + 1 = 7 x+ 1 3 x + 2 = 3 x minus 2 4 x + 1 = 3 x + 8 negative 2 x minus 1 = negative 2 x minus 1

Answer:

Step-by-step explanation:

3/4

Answer:

-9.3 meters per minute

Step-by-step explanation:

a=−2.3(1)−7

Multiply −2.3 and 1 to get −2.3.

a=−2.3−7

Subtract 7 from −2.3 to get −9.3.

a=−9.3

Answer:

x=42.3m

Step-by-step explanation:

x/47=82.8/92

92x=3891.6= 42.3m is the distance

Given that the triangles formed are similar, the distance between the two campsites is: 42.3 m.

Triangles that are similar to each other always have the same shape but different sizes, and the ratio of their corresponding sides are equal (proportional).

The two triangles formed are similar triangles. Therefore:

47/FG = 82/73.8

Cross multiply

FG = (47 × 73.8)/82

FG = 42.3 m

Therefore, given that the triangles formed are similar, the distance between the two campsites is: 42.3 m.

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The solution for w in terms of x equation is w = -x/2 + 3.

Let's solve the equation :

8w - 8 = -4x + 16

To solve for either variable,  start by isolating one of them. Let's isolate w:

8w = -4x + 16 + 8

8w = -4x + 24

Now, divide both sides of the equation by 8 to solve for w:

w = (-4x + 24) / 8

w = -x/2 + 3

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We can plot e versus r by following the given steps below:Firstly, let's assume r0 = 1.Now, we can calculate the value of r1 = 12r0 = 12.Now, given e0 = e(r = r0) = 3ρ0r0/(16πε0r20) = 3ρ0/(16πε0r0).

Also, given r is from 0 to 2r0. Therefore, r varies from 0 to 2.Now, we can find the value of e using the formulae, e = e0(r0/r) * exp(-(r - r0)/r1).The above formula is obtained from the following equation of electric field strength with respect to the distance, r:e = e0 * exp(-(r - r0)/r1)Here, e0 is the initial electric field strength, r1 is the decay constant, r is the distance from the source, and e is the electric field strength at distance r from the source.

Now, let's plug in the values of r0, r1, and e0 in the formula for calculating the electric field strength e.e = 3ρ0/(16πε0r0) * exp(-(r - 1)/12)Where, ρ0 is the charge density and ε0 is the permittivity of free space.We can then calculate the value of e for each value of r from 0 to 2. Once we have calculated the values of e for each value of r, we can plot a graph of e versus r.

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Answer:

B) 5/5

Step-by-step explanation:

5/10 ÷x = 1/2

Divide the top and bottom by 5/5

5/10 ÷ 5/5 = =1/2

Answer:

D 2/2

Step-by-step explanation:

Answer:

The directional bearing of the boat is N 30º E

Step-by-step explanation:

Let \(\vec v = (25, 25\sqrt{3})\), where \(\vec v\) is the vector velocity. Given that such vector is represented in rectangular, a positive value in the first component is the value of the vector in the east direction, whereas a positive value in the second component is in the north direction. The directional bearing of the boat (\(\theta\)), measured in sexagesimal degrees, is determined by trigonometrical means:

\(\theta = \tan^{-1}\frac{v_{y}}{v_{x}}\) (1)

If we know that \(v_{x} = 25\) and \(v_{y} = 25\sqrt{3}\), then the directional bearing of the boat is:

\(\theta = \tan^{-1} \sqrt{3}\)

\(\theta = 60^{\circ}\)

In consequence, we conclude that the direction bearing of the boat is 30 degrees to the East from the North (N 30º E).

Answer:

A) N 30 E

Step-by-step explanation:

The probability the student is in drama, given that they are a sophomore is 23%.

What is probability?

Probability is a way of determining how likely something is to happen. Many events are difficult to predict with total certainty. Using it, we can make predictions about the probability of an event happening, or how likely it is.

Total number of students = 20+7+13+20+13+2+25+5+5 = 100

Number of students in sophomore(\(S_{o}\)) = 20+7+3 = 30

Number of drama students(D) who are in sophomore = 7

To calculate the probability the student is in drama, given that they are a sophomore:

P(drama | sophomore) = \(\frac{P(drama \ and \ sophomore)}{P(sophomore)}\) = 23%

Therefore, probability = \(\frac{n(D\cap S_{o} )}{n(S_{o} )} =\frac{7}{30} = 23\%\)

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Answer:

True

Step-by-step explanation:

if you really think about it you can use y for anything an dy is the most replaceable to have so i agree with your think hope it help man

Following are the solution to the given graph equation:

Given:

\(y<2x+3\)

To find:

true points

Solution:

Therefore, the final answer is "None of these".

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Answer:

34h

Step-by-step explanation:

Combine like terms.

10h+10h+10h+4h

30h+4h

34h

-hope it helps

Answer:

34h

Step-by-step explanation:

10h+10h+4h+10h

Combine Like Terms:

=10h+10h+4h+10h

=(10h+10h+4h+10h)

=34h

Answer:

All of them

Step-by-step explanation:

A and B are parallel. C and D are parallel. R and S are parallel. T and U are parallel.

Answer:

Yes, it is TRUE

Hope my answer helps you ✌️

The interpretation of significance testing involves comparing the p-value to the significance level. If the p-value is less than the significance level, then the results are statistically significant, meaning that it is unlikely that the observed results occurred by chance alone. On the other hand, if the p-value is greater than the significance level, then the results are not statistically significant, meaning that the observed results could have occurred by chance alone.

The purpose of the hypothesis testing framework is to make inferences about the population using sample data. The hypothesis testing framework involves making a claim or statement about the population (called the null hypothesis), collecting data from a sample, and testing the claim using statistical methods. If the data strongly contradicts the null hypothesis, then it can be rejected in favor of an alternative hypothesis.

The significance level, also known as the alpha level, is a predetermined threshold used to determine if the null hypothesis should be rejected. If the p-value, which represents the probability of observing the sample data or more extreme data under the null hypothesis, is less than the significance level, then the null hypothesis is rejected.

The interpretation of significance testing involves comparing the p-value to the significance level. If the p-value is less than the significance level, then the results are statistically significant, meaning that it is unlikely that the observed results occurred by chance alone. On the other hand, if the p-value is greater than the significance level, then the results are not statistically significant, meaning that the observed results could have occurred by chance alone.

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The hypothesis testing framework is used to determine whether a given hypothesis is statistically significant or not. This is an essential tool for researchers and scientists in various fields, including statistics, economics, psychology, and medicine.

The purpose of the hypothesis testing framework is to assess whether a particular hypothesis is supported by the available evidence. This is done by comparing the observed data to what would be expected if the null hypothesis were true. If the observed data is significantly different from what would be expected under the null hypothesis, then the null hypothesis is rejected. In other words, the hypothesis testing framework is used to determine whether a particular result is due to chance or whether it is statistically significant.Interpretation of significance testing:Interpreting significance testing involves looking at the level of significance (p-value) and determining whether it is significant or not. A p-value is the probability that the observed result could have occurred by chance. If the p-value is less than or equal to 0.05, then the result is considered significant. If the p-value is greater than 0.05, then the result is not significant. This means that there is not enough evidence to reject the null hypothesis.In summary, the hypothesis testing framework is used to assess the statistical significance of a particular hypothesis, while interpreting significance testing involves looking at the p-value and determining whether the result is significant or not.

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The probability that the sample mean will be between 1195 and 1205 is 0.445

What is a probability distribution?

In mathematics, a probability distribution is a function that expresses the likelihood of many possible values for a variable. Graphs and probability tables are common ways of displaying probability distributions.

Given, mean = \(\mu\) = 1200

standard deviation = \(\sigma\) = 60

n = 50

\(\mu_{\bar x} = 1200\\\sigma_{\bar x} =\sigma / \sqrt(n) = 60/ \sqrt50=8.485\)

\(P(1195 < \bar x < 1205 ) = P[(1195-1200) / 8.485 < (\bar x - \mu\bar x ) / \sigma\bar x < (1205-1200) / 8.485)]\)

= P(-0.59 < Z <0.59 )

= P(Z <0.59 ) - P(Z <-0.59 )  

Using the z table, we get

=0.7224-0.2776

=0.4448 = 0.445 ( rounded to 3 decimal places)

Hence, the probability that the sample mean will be between 1195 and 1205 is 0.445

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Factorial notation is used to represent the product of a series of descending positive integers, and is denoted by an exclamation mark.

For example, 5! represents 5 x 4 x 3 x 2 x 1, which equals 120. If the study involves counting the number of ways a certain group of items can be arranged, factorial notation may be used to express the total number of possible arrangements. However, without knowing the specifics of Dr. Elder's study, it is impossible to provide the correct factorial notation. Therefore, I would recommend providing more details about the study in order to receive a more accurate answer.

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To determine the probability that the ball selected shows an odd number, given that the ball is yellow, we need to consider the number of favorable outcomes (yellow balls showing odd numbers) and the total number of possible outcomes (yellow balls).

From the given information, we can identify two favorable outcomes: the yellow balls numbered 3 and 5.

Therefore, the probability that the ball selected shows an odd number, given that the ball is yellow, is:

Probability = (Number of favorable outcomes) / (Number of total outcomes)

= 2 / 3

= 2/3 ≈ 0.6667

Probability that the ball selected shows an odd number, given that the ball is yellow, is approximately 0.6667 or 66.67%.

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Approximately  photons are emitted by the laser.

To determine the number of photons emitted by the laser, we can use the formula:

Energy of a photon = (Planck's constant * Speed of light) / Wavelength

The energy of a photon can be calculated by dividing the total energy detected by the detector by the number of photons emitted.

Given:

Wavelength = 432 nm = \(432 * 10^{-9} m\)

Total energy detected =\(1.60 * 10^{-16}\)J

First, we calculate the energy of a single photon using the wavelength:

Energy of a photon = \((6.626 * 10^{-34} J s * 3.00 * 10^8 m/s) / (432 * 10^{-9} m)\)

Next, we divide the total energy detected by the energy of a single photon to find the number of photons emitted:

Number of photons = Total energy detected / Energy of a photon

Plugging in the values:

Number of photons = \((1.60 x 10^{-16} J) / [(6.626 x 10^{-34} J s * 3.00 x 10^8 m/s) / (432 x 10^{-9} m)]\)

Simplifying the expression:

Number of photons ≈ \(3.90 * 10^{15}\) photons

Therefore, approximately \(3.90 * 10^{15}\) photons are emitted by the laser.

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Answer: ( A )

Step-by-step explanation: basically as the question is what is equivalent to .45 and if you put it like a fraction kinda it will look like this 1\45

Answer:

He received $45 for the bike

Answer:

41 minutes

Step-by-step explanation:

Answer:

thirteen septillion.

Step-by-step explanation:

Answer:

Number 13000000000000000000000000 converted to English text. Formatted number: 13 000 000 000 000 000 000 000 000. Cardinal. thirteen septillions.

Answer:

∠B = 82°

Step-by-step explanation:

(see attached for reference)

recall the property that an exterior angle of a triangle is equal to the sum of its two remote interior angles.

in our case, the exterior angle is obtuse ∠A = 143°

the two remote interior angles are ∠C and ∠B

hence according to our definition above:

143° = ∠C + ∠B  (we are given that ∠C =61°)

hence

143° = 61° + ∠B

143° - 61° =  ∠B

∠B = 82°

For a circle with a diameter of 10 cm, the circumference would be C = π(10) = 31.4 cm. The correct option is (D) 31.4 cm.

The circumference of a circle can be calculated using the formula           C = πd, where C represents the circumference and d represents the diameter of the circle.

We have the diameter of the circle is 10 cm, we can substitute this value into the formula:

C = π * 10 cm

Calculating the circumference using an approximate value of π as 3.14:

C ≈ 3.14 * 10 cm

C ≈ 31.4 cm

Therefore, the circumference of a circle with a diameter of 10 cm is approximately 31.4 cm.

The correct answer is D) 31.4 cm.

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Answer:

Longer than

Step-by-step explanation:

The lengths of sides A C and F E are congruent. The lengths of sides B C and D E are congruent. Therefore:

AC = FE, BC = DE

Also m∠C is greater than m∠E

∠C is the angle opposite to line AB and ∠E is the angle opposite to line DF. Since AC = FE, BC = DE and m∠C is greater than m∠E. The length of a side of a shape is proportional to its opposite angle, since the opposite angle of AB is greater than the opposite angle of DF  therefore AB is greater than DF

From the given two triangles under the given conditions of congruency, we can say that;

Line segment AB is longer than Line segment FD.

The image showing both triangles is missing and so i have attached it.

Therefore, we can say that line AB and line FD do not have the same length.

Now, we see that angle BCA is larger than angle DEF, and as such we can say that the line segment AB is longer than line segment FD.

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Yes, the sample size would be large enough if the population is school-aged children and young adults in the United States as this is a simple random sampling.

Simple random sampling is used for randomly selecting the sample size for research. No member in the population has a higher chance in comparison to others for selection in sampling. Every individual has an equal chance to be a part of the sample for the study. This is a type of probability sampling method.

The probability sampling method states that every individual has a fair and equal chance to be selected as a research sample. It includes simple random sampling, stratified sampling, systematic sampling, and cluster sampling. Here the researchers have picked around 150 students and young adults which is an appropriate amount of simple random sample for the study.

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The probability that neither roll is odd is 1/4.

When a pair of dice are rolled, each die can show an odd or even number, and there are a total of 36 possible outcomes (6 x 6) since each die has six possible outcomes.

There are 18 combinations of two dice that do not include an odd number (even-even), and so the probability of rolling an even number is 18/36  = 1/2.

Each die has the same probability of rolling an even or odd number, and so the probability of rolling an even number twice in a row (neither roll is odd) is

\((1/2)^2\) = 1/4.

Therefore, the probability of rolling a six-sided die twice in a row and not getting an odd number is 1/4 (25%).

Let E be the event of rolling an even number, and N be the event of rolling a number.

We need to find P(N'∩N')

i.e. the probability that the first roll is even and the second roll is even.

P(N') = 3/6P(N'∩N')

= P(N') * P(N')

= 3/6 x 3/6

= 9/36

= 1/4

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The probability from the odds is 3/7

The value of the odds is given as

Odds = 3 to 4

Represent the odds as a fraction

So, we have the following representation

Odds = 3/4

To convert the odds to probability, we make use of the following equation

Probability = Odds/(1 + Odds)

Substitute the known values in the above equation, so, we have the following representation

Probability = (3/4)/(3/4 + 1)

Evaluate the sum

Probability = (3/4)/(7/4)

Evaluate the quotient

Probability = 3/7

Hence, the probability is 3/7

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Answer:

x=7

Explanation:

If M is the midpoint of segment CD, it means M divides CD into two equal parts (CM and MD). Therefore:

CM=MD

5x-12=2x+9

5x-2x=9+12

3x=21

x=21/3

x=7

The value of x is 7.

Therefore ,as a result, 42/5 is the value of the first term in the equation for the arithmetic mean.

The arithmetic average or means of the group is calculated as the sum of each value in a list divided by the total number of things in that list. The progression in mathematics is the same as this. The average of the integers 5, 7, and 9 is 4, as shown by the equation 5 + 7 + 9 being equal to 21, and 21 divided by 3 (there are actually three numbers) being equal to 7.

Here,

Given :

5 a + 10 d = 70 in the first five terms (1)

The first ten terms add up to 10 a + 45 d = 210. (2)

This means that in order to solve the system for a, multiply equation (1) by 2, then subtract it from equation (2):

=> 10a - 10a + 45d - 20d = 210-140

=> 25d = 70

=> d = 70/25

=> d = 14/5

A value then becomes:

5a + 10*14/5 = 70;

5a = 70-140/5;

5a = 350-140/5;

a = 42/5.

42/5 is the response.

As a result, 42/5 is the value of the first term in the equation for the arithmetic mean.

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Answer: D: SSS Congruency

Step-by-step explanation:

- SSS congruency stands for side-side-side congruency

- if the 3 side lengths are equal for both triangles they are equivalent

- the reflexive property states that an angle, line segment, or shape is always congruent to itself

- so the reflexive property is just saying that WY = YW, therefore creating 3 equal sides for both triangles

- so the triangles are congruent by SSS

hope this helps :)