SIMPLIFY THE FOLLOWING EXPRESSION

Answers

Answer 1

Answer:

-37m+6

Step-by-step explanation:

mkay so when working with simplifying any expressions like that, you wanna start with getting rid of your brackets. To do that, you simply take the number directly outside the bracket and you multiply it by everything inside. Let's take -9(m+2) first. You have to multiply everything inside the bracket by -9, so you have -9*m and -9*2, so you end up with -9m and -18. Now you do that to the second part of the equation (4*6 and 4*-7m) and you end up with 24 and -28m. Now you join all your terms together, and you have -9m-18+24-28m. Now all you do is add like terms (so -9m + -28m and -18+24) and you end up with a simplified expression of -37m+6. I hope this helped a little :)).

Related Questions

which is the better buy chord charts A 13:10 B 18:15

Answers

Step-by-step explanation:

is there more to the question?

You withdraw $40 each month from your savings account. what integer represents the change in your balance after 4 months?

Answers

Answer:

The balance would be $160 from whatever it was before the 4 months.

Step-by-step explanation:

Since the bank balance is being added by 40 for each month for 4 months, 4 * 40 is just 4*4 with an extra zero on the end. so that would be $160.

So if the balance before was $40, then the new balance after 4 months would be $200.

If there's no money previously, then there is now $160 after 4 months.

If there's a value before the $40 for 4 months, let me know and I will explain and tell you what it is.

The record high temperature at the South Pole is 10°F. The record low temperature at the South Pole is
–
117°F.
How many degrees warmer is the record high temperature than the record low temperature?

Answers

127° higher is the difference

Answer:

127 degrees f

Step-by-step explanation:

-117 + ? = 10

describe a dataset where defining a confidence interval would be important for testing validity of data

Answers

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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jerry has constructed a multiple regression model and wants to test some assumptions of that model. in particular, he is testing for normality of the residuals. to do this jerry should:

Answers

What Jerry can do if he is testing for normality of the residuals in the regression analysis is to; construct a normal quantile plot of the residuals and see if the result is an approximately upward sloping straight line.

How to Interpret Regression Analysis?

Regression Analysis creates an equation that is the best fit of the given data of both the dependent and the independent variables. Now, it should be noted that the residuals are the error in the regression equation predicted values as well as the actual sample values.

The quantile plot is basically a standard way to tell us whether the data is distributed. Now, If the data points stay quite close to an upward sloping line in the quantile plot, then it can be assumed that the residuals are normally distributed. Then, values of the coefficients are tested to check that they are not statistically equal to zero via a t-test. The t-test is required to know whether the results of the regression are seen to be significant. Finally, results of a t-test usually possess a requirement that the residuals, is normally distributed.

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Find which is the better buy (lower
cost per ounce) by finding each unit
price. Round to two decimal places if
necessary
Shampoo:
A. $7.99 for 29.2oz
B. $5.99 for 13.5oz

Answers

Answer:

Step-by-step explanation:

1) Divide the oz per shampoo bottle by the cost

2) which answer is lower

29.2÷7.99=3.65

13.5÷5.99=2.25

which measure of variability is the most direct way to measure how dispersed a set of scores is?

Answers

The most direct way to measure how dispersed a set of scores is, is by using the range. The range is calculated by subtracting the lowest score from the highest score in the dataset, which gives a quick and easy measure of the spread of the scores.

However, the range can be influenced by extreme scores and may not provide a complete picture of the variability. Other measures of variability, such as the standard deviation and variance, take into account the variability of all scores in the dataset and provide a more robust measure of variability.

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Two tracking stations are on the equator 173 miles apart. A weather balloon is located on a
bearing of N36°E from the western station and on a bearing of N18°W from the eastern station.
How far is the balloon from the western station? Round to the nearest mile.
D) 164
A) 203 miles
B) 212 miles
C) 173 miles
miles

Answers

The balloon is 124.56 miles rounding to the nearest mile is option D)164 miles from the western station using vector addition.

To solve this problem, we can use the concept of vector addition. Let's denote the distance from the western station to the balloon as "x" miles.

We can split the distance between the tracking stations into two segments. The northern segment from the western station to the balloon and the southern segment from the balloon to the eastern station. The sum of these two segments should be equal to the total distance of 173 miles.

Using basic trigonometry, we can determine the lengths of the segments:

In the northern segment:

sin(36°) = (x) / (173)

x = 173 * sin(36°) ≈ 103.87 miles

In the southern segment:

sin(18°) = (173 - x) / (173)

173 - x = 173 * sin(18°) ≈ 48.44 miles

x ≈ 173 - 48.44 ≈ 124.56 miles

Therefore, the balloon is approximately 124.56 miles away from the western station. Rounding to the nearest mile, the correct answer is D) 164 miles.

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Critical thinking question:

11) Write a polynomial inequality with the solution: {-1}U {2} [3,co)

Can someone help me with 11 please

Answers

To write a polynomial inequality with the solution {-1}U{2}[3,∞), we can start by breaking it down into three parts. The final answer is The values of x that satisfy this inequality are -1, 2, and all values greater than or equal to 3.

x = -1: This means that -1 is a solution to the inequality, so we can write a factor of (x + 1) in the inequality.

x = 2: This means that 2 is a solution to the inequality, so we can write a factor of (x - 2) in the inequality.

x ≥ 3: This means that all values of x greater than or equal to 3 are solutions of the inequality, so we can write a factor of (x - 3) in the inequality.

Putting all of these factors together, we get:

(x + 1)(x - 2)(x - 3) ≥ 0

This polynomial inequality has {-1}U{2}[3,∞) as its solution, because it is only equal to zero at x = -1, x = 2, and x = 3, and it is positive for all other values of x. Therefore, the values of x that satisfy this inequality are -1, 2, and all values greater than or equal to 3.

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Write a polynomial inequality with the solution: {-1}U {2} [3,co)

What is the area?
22 mi
12 mi

Answers

Answer:

264 square miles

Step-by-step explanation:

Which of the following impulse responses correspond(s) to stable LTI systems (a) hi(t) = e-(1-2)u(t) (b) hy(t) = cos(2t)u(t) (c) h(t) = 8(-21)

Answers

The impulse response (b) hy(t) = cos(2t)u(t) corresponds to a stable LTI system. Option b is correct.

An LTI (Linear Time-Invariant) system is stable if and only if its impulse response h(t) is absolutely integrable, i.e., the integral of the absolute value of the impulse response over all time is finite:

∫|-∞ to ∞| |h(t)| dt < ∞

For impulse response (a), hi(t) = e^-(1-2)t u(t), we can compute the integral of its absolute value:

∫|-∞ to ∞| |hi(t)| dt = ∫[0 to ∞] e^-(1-2)t dt = 1

Since the integral is finite, this impulse response corresponds to a stable LTI system. For impulse response (c), h(t) = 8δ(-21), where δ(t) is the Dirac delta function, the integral of the absolute value is:

∫|-∞ to ∞| |h(t)| dt = |8| = 8

Since the integral is finite, this impulse response also corresponds to a stable LTI system. For impulse response (b), hy(t) = cos(2t)u(t), we can compute the integral of its absolute value:

∫|-∞ to ∞| |hy(t)| dt = ∫[0 to ∞] |cos(2t)| dt = ∞

Since the integral is infinite, this impulse response does not correspond to a stable LTI system. Hence Option b is correct.

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Convert .80 to percent

Answers

80%

.80 out of 1 is basically 80/100

Answer:

80%

Step-by-step explanation:

you just move the decimal over twice have a great day

A class has 6 girls and 15 boys. Write the ratio of girls and boys as a fraction in simplest form

Answers

The answer is 2/5, which is 2 over 5

Answer:

2 : 5 2/5

Step-by-step explanation:

6 : 15

6/3 15/3

2 : 5

the festival starts out with n attendees. each person is numbered from 0 to n - 1.

Answers

The festival is a time for people to come together and celebrate. People come from all over the world to participate in the festivities.

In a festival, the attendees are numbered from 0 to n - 1. The total number of attendees at the beginning of the festival is n. The festival begins with n attendees, and each person is numbered from 0 to n - 1. It's essential to note that the numbering convention begins at 0, and the last person is numbered n - 1, as stated above.As a result, if there are ten people at the festival, they will be numbered from 0 to 9. The festival's organisers, who are aware of the attendees' numbering convention, arrange a number of events to make the festival enjoyable for everyone. Each event has a specific set of rules, and the attendees must follow them to avoid being disqualified.The festival is a time for people to come together and celebrate. People come from all over the world to participate in the festivities. Some of the events include games, competitions, cultural dances, and music performances. The festival is an excellent opportunity for people to learn about different cultures, make new friends, and have a good time.In conclusion, the festival starts out with n attendees, and each person is numbered from 0 to n - 1. The festival's organisers arrange a number of events to make the festival enjoyable for everyone. The festival is a time for people to come together and celebrate.

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a quiz consists of 15 matching questions with 15 possible matches from which to choose. if a student guesses on the first question, what is the probability that he will get the correct answer? (enter your probability as a fraction.)

Answers

The probability that the answerof the 1st question is correct is 1/15.

What is probability?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. Simply put, the probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.

So, the probability of the correct answer:

The number of questions is 15.The number of matching answers is 15.So, the match of 1 question is always 1 answer.

Probability formula: P = Favourable events/Total events

Where total events are 15 and favorable event is 1.

Now calculate as follows:

P = Favourable events/Total eventsP = 1/15

Therefore, the probability that the answerof the 1st question is correct is 1/15.

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using 2 jugs of size 100 and 98 gallons, can we measure 3 gallons of water? why? can we measure 4 gallons of water?

Answers

No, we cannot measure 3 gallons of water using 2 jugs of size 100 and 98 gallons. But, we can measure 4 gallons of water using these jugs.

Let's call the two jugs A and B, with A being the 100-gallon jug and B being the 98-gallon jug.

To measure 3 gallons of water, we need to have one jug that is smaller than 3 gallons and another jug that is larger than 3 gallons.

However, both of these jugs are larger than 3 gallons.

This means that it is impossible to measure 3 gallons of water using these jugs.

To measure 4 gallons of water, we can follow these steps:

Fill jug A to the top with water.

Pour the water from jug A into jug B until jug B is full.

This will leave 2 gallons of water in jug A.

Pour the water from jug B down the drain, then pour the 2 gallons from jug A into jug B.

Fill jug A to the top with water.

Pour the water from jug A into jug B until jug B is full.

This will leave 96 gallons of water in jug B, with 4 gallons of water in jug A.

Thus, we can measure 4 gallons of water using these jugs.

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Find area of the shaded segment vb and length of vb

Answers

Answer:

Area of length Vb = 25 square units

Area of segment Vb = 26 square units

Step-by-step explanation:

Area of length Vb = theta/360 * 2πr

Area of length Vb = 120/360 * 2*3.14 * 12

Area of length Vb = 1/3 * 75.36

Area of length Vb = 25 square units

Ares of length Vb is 25.1 sq. units

Area of shaded portion = Area of sector VUB - Area of triangle VUB

Area of sector VUB = theta/360 * πr²

Area of sector VUB = 120/360 * 3.14*144

Area of sector VUB = 1/3 * 452.16

Area of sector VUB =150.72

Area of triangle VUB = r²sintheta

Area of sector VUB = = 12²sin 120

Area of sector VUB = = 144(0.8660)

Area of sector VUB = 124.71

Area of the shaded segment = 150.72 - 124.71

Area of the shaded segment = 26.01

Area of the shaded segment = 26 sq. units

please help fast HELP

Answers

Answer:

The letters are really small I can't see it.

Step-by-step explanation:

Sorry

1) Let the propositions be simple:
Q: today is Wednesday
Q: today there is modeling class
Write (in narrative text) its compound proposition, if it is defined with the following expression:

Answers

If we assume that the propositions are simple and denote them as below:Q: Today is WednesdayQ: Today there is modeling classUsing the symbol, P and Q, we can express them as follows:P: Today is WednesdayQ: Today there is modeling class

Then, if a compound proposition is defined with the expression: P and Q, the compound proposition would be:P and Q: Today is Wednesday and today there is modeling class.Now, we can write this in narrative text form: If today is Wednesday and there is modeling class, then it can be said that today there is modeling class on Wednesday. The meaning of the compound proposition P and Q can only be true if both propositions are true. So, the statement "Today is Wednesday and there is modeling class" only holds if both propositions are true.

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find the expected value of the proposition.round your answer to two decimal places. losses must be expressed as negative values.

Answers

To find the expected value of the question, we need to find the probability of having a card with a value less or equal to 5, and the probabilities greater than 5. We are told that the aces are considered the highest card in the deck. So, this card is not part of the group less or equal to 5.

Then, we have in a standard deck of cards 52 cards.

• Those cards that are equal or less than 5 are 16 cards.

• Those cards that are greater than 5 are 36 cards.

The probability of having a card equal to or less than 5 is equal to:

$P(C\leq5)=\frac{16}{52}$

The probability of having a card greater than 5 is equal to:

$P(C>5)=\frac{36}{52}$

When we pay someone, we have a "loss" in a game. Then, if we pay $22, we need to write this value as -$22.

Therefore, the expected value of the proposition is as follows:

$E(V)=\frac{16}{52}\cdot39-\frac{36}{52}\cdot22=-3.23076923077$

If we round the result to two decimal places, we have that the expected value is equal to E(V) = $ -3.23.

HELP ME!
A passenger train leaves a train depot 2 h after a freight train leaves the same depot. The freight train is traveling 28 mph slower than the passenger train. Find the rate of each train if the passenger train overtakes the freight train in 3 h.

A. Passenger train ___ mph
B. freight train ___ mph

Answers

Answer: A. Passenger train: 52 mph B. Freight train: 24 mph

Step-by-step explanation:

The following rectangle has area 16.4icm² and length 8.207cm. Work out its width, xcm. Area = 16.41 cm x cm 8.207cm

Answers

I’m a little confused by the question at the end, but from the first two sentences, I think I’ve got it. If not, leave a comment and I can help further. So to find the width of this rectangle, you only need to divide the area by the length. As to find the area, it’s length x width. Kind of like the width is x and you are trying to get w separate from 8.207. (16.4)/(8.207). This comes out to be 1.99829414 cm. Hope this helps!

Please help, super behind in the class and still trying to learn and catch up.

Given the equation and table below, determine the following

(Picture below)

Answers

Answer: See attached and/or view below.

Step-by-step explanation:

Since we are given the equation, we can plug the values into it and solve for the unknown. We will solve by isolating the variable and using reverse operations.

x = 1, y = 34

2x + y = 36

2(1) + y = 36

2 + y = 36

y = 34

x = -2, y = 40

2x + y = 36

2(-2) + y = 36

-4 + y = 36

y = 40

y = 18, x = 9

2x + y = 36

2x + (18) = 36

2x = 18

x = 9

The mathematical comparison of your experimental results to a known value is known as:__.

Answers

The mathematical comparison of your experimental results to a known value is known as percent error.

According to the statement

we have explain the term which is used in the mathematical comparison of your experimental results to a known value.

So, For this purpose,

From given information:

There is comparison between the experimental value and the known value.

And for comparison we have to divide the experimental value by the known value.

By this way we get the percent error.

so,

Percent error is the difference between estimated value and the actual value in comparison to the actual value and is expressed as a percentage.

That's why the term become percent error.

So, The mathematical comparison of your experimental results to a known value is known as percent error.

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help plsssssssssssssssssss

Answers

A - Going in debt after a huge loss due to your Gambling Addiction

cuanto pagaríamos por un libro cuyo precio es de $25 si le aplicamos un descuento del 25% cuanto dinero ahorramos

Answers

Tenemos precio de lista de $25 para el libro.

Si aplicamos un descuento del 25%, este descuento representa:

$D=(\frac{25}{100})\cdot25=0.25\cdot25=6.25$

Ahorramos $6.25.

El precio que pagamos el libro es $18.75.

$P=L-D=25-6.25=18.75$

You select a marble without looking and then put it back. If you do this 12 times, what is the best prediction possible for the number of times you will pick a marble that is not orange?

Answers

Answer:

the answer is number of orange marble/number of times

which might be 1/12 because you didn't specify

Suppose that the functions u and w are defined as follows.
u(x)=-x-1
w(x) = 2x+1
Find the following.

Answers

Step-by-step explanation:

I answered this already.

The stem and leaf plot shows the number of minutes Cal talked on his phone each day for the past 14 days

Answers

Answer:

0,5, 11,15,26,45,46,46,46,52,60,71,84,87

Step-by-step explanation:

Given

See attachment for plot

Required

The data represented on the plot

A stem and leaf plot presented as:

a | b c d

is interpreted as: ab, ac, ad

Using the above as a guide, the data represented on the plot are:

0,5, 11,15,26,45,46,46,46,52,60,71,84,87

The stem and leaf plot shows the number of minutes Cal talked on his phone each day for the past 14 days

Help i don't know what to do please help

Answers

B and C
Then do D
Hoped this helped

Answer:

I would need to hear it.

Step-by-step explanation:

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