Mathematics Middle School

need help plsss fast!!!!

Need Help Plsss Fast!!!!

Answers

Answer 1

Answer:

-2x - 10 = -2(x + 5)

Step-by-step explanation:

-2x - 10 = -2(x + 5)

Multiply out the right side:

-2x - 10

Answer 2

Answer:

-2x-10=-2(x+5)

Step-by-step explanation:

-2x-10=-2x-10

Related Questions

Determine if each equation is linear or nonlinear.

Answers

Answer: Linear, Linear, Nonlinear, Linear

Step-by-step explanation:

Any equation for y where x is lacking an exponent is a LINEAR function.

Choice 3, when distributing 4x with x, produces 4x^2.

Thus, that is the only one not linear here (it is quadratic instead)

Hope this helps

MM

Keiko used the distributive property to write an expression that is equivalent to 2(x + 4). She then drew the model below to explain her answer. What expression did Keiko write? How does the model show an equivalent expression?

Answers

12
2x4 and then that equals 8 and u just add 4 again

What is the order pair of the Outlier?

(-3,5)

(-2,3)

(x,y)

(5,-3)

Answers

Answer:

(5,-3)

Step-by-step explanation:

as you can see if you start from the origin and go sideways you end up at 5 in quadrant 4 then go down 3 and that is -3 since quadrant 4 is (+,-), (5,-3) also is separate from all the other points, all the other points are in quadrant 2.

X Goes to the right or Left and Y goes up or down and X goes first

Scott has 25 counters. He gives 10 of the counters to Alex. a) What fraction of the 25 counters does Alex get? Give your answer in its simplest form. b) What fraction of the 25 counters does Scott have now? Give your answer in its simplest form.

Answers

Answer: a) Alex gets 10 counters out of 25, so the fraction of the counters he gets can be expressed as 10/25. To simplify this fraction, we can divide both the numerator and the denominator by their greatest common divisor, which is 5:

10/25 ÷ 5/5 = 2/5

So, Alex gets 2/5 of the 25 counters.

b) After giving 10 counters to Alex, Scott has 25 - 10 = 15 counters left. So, the fraction of the 25 counters that Scott has now can be expressed as 15/25:

15/25 ÷ 5/5 = 3/5

So, Scott now has 3/5 of the 25 counters.

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) The counters that are in Alex= 10

  The Fraction of 25 counters is = 10%25

  Hence, the fraction of counters does Alex get is 2/5

b) Let the number of counters does Scott have = 25-10 =15

  The fraction of 25 counters is = 15%25

  Hence, the fraction of counters does Scott get is 3/5

 

Julia has £32 She gives £24 to Rhianna.
a) What fraction of the £32 does Rhianna get? Give your answer in its simplest form.
b) What fraction of the £32 does Julia have now? Give your answer in its simplest form.

Answers

Answer:3/4

Step-by-step explanation: 8x3 = 24

8x4=32

8x1=8      1/4

8x2=16    2/4

8x3=24   3/4

8x4=32    4/4 = 1

Please heeeeeeelp Im confuzzeld

Answers

The answer is 8(2x+7y) because the common factor is 8

Answer: 8(2x+7y)

Step-by-step explanation:

Factorisation here, in equation basically means, to put it into brackets.

Step 1 :

First we have to look for if anything is common, and there is! We can do the GCF of both numbers, the answer we will get will be out of the brackets.

GCF of 16 and 56 is 8

Step 2 =

No we do this =

8 x what is 16x? 2x

8 x what is 56y? 7y

so we got this = 8( 2x+7y)

So the final answer is 8(2x+7y)

Make the answer the brainliest, if you are satisfied with it!

Estimate the following sum by clustering.

14.2 + 15.51 + 14.99 + 15.8
Quick

40
60
100
80

Answers

the estimated answer is 60

Answer

Step-by-step explanation:

14.2+15.51=29.71+14.99=44.7+15.8=60.5

AroundAroundAround 60

HELP 16 POINT GIVEN
even one extra one!

Answers

Answer:

2.8 is greater than 2.58 because 2.8 is closer to 3 on a number line.

Answer:

C or 2.8 is greater than 2.58 because 2.8 is closer to 3 on a number line.

Part 3 - Discussion Question
Will an exponential function always exceed a linear function? Explain your answer and provide examples to support your claim.

Answers

Answer:

Yes

Step-by-step explanation:

It will always pass because it will keep on going, while a linear function may stop.

(Identifying Functions MC)

The graph represents a relation where x represents the independent variable and y represents the dependent variable.

a coordinate plane with points at negative 5 comma 1, negative 2 comma 0, 0 comma 2, 1 comma negative 2, 3 comma 3, and 5 comma 1

What is the domain of the relation?

{−2, 0, 1, 3}
{−2, 0, 1, 2, 3}
{−5, −2, 0, 1, 3, 5}
{−5, −2, 0, 1, 2, 3, 5}

Answers

Answer: D([-5, -2, 0, 1, 2, 3, 5])

Step-by-step explanation: What is Domain?

Domain is the complete set of possible values of the input(x) of a function or relation. This shows all possible x-values!

Hope this helps!

A summary of an informational text includes ________, the central idea, relevant key details, and a closing thought or statement.

a personal story about the topic
feelings about the topic
opinions about the text
the title and author of the text

Answers

Answer:

4

Step-by-step explanation:

Please help, I need this right now...
Question:
Analisa recorded 83º, 87º, 90º, and 78º as the highest temperatures in her city for the month of October. She calculated a mean of 84.5º and a median of 85º for these temperatures. Which statement would describe the changes in the mean and the median if a temperature of 76º was then added to her list?
Options:
1. The mean would increase.
2. The median would increase.
3. The mean and median would both increase.
4. The mean and median would both decrease.

Answers

Step-by-step explanation:

The correct answer is option 3: The mean and median would both increase.

Answer:

3. The mean and the median would both increase.

Step-by-step explanation:

Part 1 - Application
The local botanical garden is setting up for a special event called "Music Mondays." They expect to have 100 people show up to the event and want to make sure that they have enough room for that many chairs. The first row has 8 chairs in it and each new row adds four chairs. How many chairs would be on the 5th row? Would 5 rows be enough to accommodate the 100 people?

Answers

Answer:

there will be 84 chairs which is not enough for 100 people.

Step-by-step explanation:

8+(8+4)=20, 20+(12+4)=36, 36+(16+4)=56 and 56+(20+4)=84 chairs.

add v to 5, then add 2 to the result

Answers

(v + 5) + 2 = v + 7 is the answer.

V+7 is the answer because you add (v+5)+2= v+7

Identify the unit rate in each equation. Then, order the equations by unit rate, from least to greatest.

Equation A Equation B Equation C Equation D
3x=4y y=4x x=4y 4x=3y

Answers

Answer:y=10

Step-by-step explanation:

It’s b because I took the quiz

please answer this!

Answers

7 people came back on the motorbike

Answer:

11

Step-by-step explanation:

Subtract 27 by 12 to figure out how many rode in canoes. Then divide by 3 for each canoe which means that there are 4 canoes. On return trip, there are 16 people riding in canoes because there are 4 per canoe, which means that 27 people in total - 16 people in canoes is 11 people riding the motorboat on the way back.

Each student in Ms. Karam’s science class uses one of the 20 lab stations for experiments. Ms. Karam lets students choose their own lab station. Gloria is the first in the class to choose a station for her work. José then chooses a lab station. Are the students’ choices dependent or independent? Explain in words how you determined your answer.

Answers

the students are independent because they choose, on their own, what stations they want to do their work at. I hope this helped

please hellpppp meeeeeee

Answers

Answer:

p = 21d

Step-by-step explanation:

If Arnold reads an average of 21 pages a day, and the number of days is represented by d, then the number of pages he reads after a number of days is p = 21d

The answer would be P=21+d.

Please help ASAP! I attached a screenshot.

Answers

Answer:B,C

Step-by-step explanation:

6/9=2/3=18/27=30/54

Answer: 18/27

: that’s the only one I know sorry

please answer this!

Answers

Answer:

i would say Wednesday

Step-by-step explanation:

Answer:

I think its Wednesday

NEED HELP ASAP

Identify the constant of proportionality.

Answers

Answer: 10

Step-by-step explanation:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. 

So,

Let's take every point of the graph, than apply the equation.

When y is 10:

k = 10/1

When y is 20:

k = 20/2

When y is 30:

k = 30/3

When y is 40:

k = 40/4

When y is 50

k= 50/5

EVERY TIME, the answer is 10, take any point when this line graph is enlarged, the point on the line, are always going to be 10.

When y is (10) , then, x is 1 (as the point is in the x axis = 1

When y is (20), then, x is 2 (as the point is in the x axis = 2

.........

Make my answer the brainliest, if you are satisfied with my answer!

I need help, please help me!!

Answers

Answer: exactly

Step-by-step explanation:

Answer:
x = -2 ; y = -8
x = -1 ; y = -1
x = 0 ; y = 0
x = 1 ; y = 1
x = 2 ; y = 8

Explanation:
Multiply each number (x) 3 times to the exponent (3)
Example: x = 2 (2 • 2 • 2 = 8)

The following table shows the chemical makeup of one mole (a unit of measure commonly used in chemistry) of acetone and the approximate mass of a mole of each compound element.

Oxygen makes up what percent of the mass of one mole of acetone? Round to the nearest whole percent.

Answers

Answer:

55%

Step-by-step explanation:

You add all the grams and divide 16

16/29=0.551

then the nearest whole percent would be

55%

HURRY HELP EASY QUESTION WILL MARK BEANLIES IF CORRCT!! . NO SILLY ANSWERS OR I WILL REPORT What is this number in standard form?


(4×100)+(1×10)+(3×110)+(5×11,000)


Enter your answer in the box.

Answers

Answer:

55,740

Step-by-step explanation:

(4x100) = 400, (1x10) = 10, (3x110) = 330, and (5x11,000) = 55,000. If you add all of these together, you will get 55,740 which is your final answer.

The perimeter of the quadrilateral is 12 meters. What is the length of the unlabeled side? 2 m 5 cm 3 m 4 m

Answers

Based on the given conditions, formulate:

12/4

Then just simplify. So your answer would be 3.

Hope this helps!

SHOW THINKING OR EXPLAIN WHY U CHOSE ANSWER
The dot plots below show rainfall totals in the Highlands and Lowlands areas of a certain region.


2 dot plots. One plot is titled Highlands, and the second plot is titled Lowlands. The peak rainfall for the Highlands is 16 and 18, and the peak for the lowlands is 12.


When comparing the two sets of data, which is a true statement?

There are gaps in both sets of data.

The ranges are the same.

The two sets of data do not overlap.

The rainfall peaks at a lower value in the Lowlands.

Answers

Answer: The two sets of data do not overlap.

Jonathan measured 2 cups of flour into a bowl on the counter. Than he spilled part of it, now there is 3/8 left. how much did he spill?

Answers

Answer:2 cups was our starting point and we were left with 3/8 cups left after he spilled it, we are looking to find how much he spilled.

We could start by making 2 into a fraction so we could minus 3/8 easily.

2 = 16/8 (Two wholes is 16 eights.)

Now solve like a regular subtraction equation.

16/8 - 3/8 = 13/8

Our answer is 13/8 which simplified as a mixed fraction is 1 5/8

We lost 1 and 5/8 cups.

Step-by-step explanation:

Answer:

1 and 5/8 cups

Step-by-step explanation:

1.The final angle measures are the same as the original angle measures. tue or false

2.The final side lengths are shorter than the original side lengths. true or false

3.The original figure and the final figure may not be congruent. true or false

4.If two sides are parallel in the original figure, then those sides may not be parallel in the final figure. true or false

Answers

Answer:

1.true

2.false

3.false

true

Which expression models what is being described?

3 is taken away from the product of 4 and 5

Answers

Answer: 4 x 5 - 3 = 17

Step-by-step explanation:

product is multiplication. 4 x 5 = 20

taken away is subtraction. 20 - 3 = 17

Therefore the answer  of is 4 x 5 - 3 = 17

Find the value of 3x3 + 4x2 + x - 5 when x = -3.


(A) -53 (B) -71 (C) -32
I really can't think right now.

Answers

Answer:

15

Step-by-step explanation:

3x3 + 4x2 + -3 - 5

9 + 8 + -2 or 9 + 8 - 2

17 + -2 or 17 - 2 = 15

the answer to this problem would be 15
Other Questions
What is the value of x? 60 10 x I need the answer plssssss In pine trees, pollen grains get to the ovule via the _____. You flip a coin, spin the spinner, and flip a coin again. Find the probability of flipping heads, spinning an odd number, and then flipping tails. Which of the following is a key observation that must be explained in a unifying theory about life?A. All living things require oxygen to survive.B. Evolution is based on descent with modification.C. Earth is very old.D. Organisms are rarely well suited to their environments.E. Many basic characteristics are shared by all living things. The company president thought that type of music listened to (country vs. classical) could predict production line output. For one week the entire plant listened to country music, then for the next week the entire plant listened to classical music. He then compared the production line output between the country and classical music production line outputs.(a) What type of research hypothesis is tested in this study?associative RHcausal RH(b) What type of design is being used in this study?true experimentnon-experiment(c) What type of design is being used in this study (mark all that apply)cross-sectional designwithin-group designbetween subjects designrepeated measures designlongitudinal designwithin-subjects designbetween groups design(d) Will the design used in this study provide an appropriate test of the research hypothesis?Yes, this design can be used to test this research hypothesisNo, this design can not be used to test this research hypothesis How do you introduce Black History Month to students? How does Macbeth exhibit a lack of "kinglike graces" in Act IV? Providetwo "quotes from the text to support your answer. Your response should do thefollowing: Question 4 pts (Lesson 2.11: Covariance and Correlation ) Suppose that the correlation between December snowfall and temperature in Siberacuse NY is -0.5. Further suppose that Var(S) =100 in2 and Var(T) = 25 (degrees F)2 . Find Cov(S,T) (in units of degree inches, whatever those are): a. -25 0 b. - 0 c 0 d. 25 System of controllinglor regulating a society. Is called? line y= 2x-1 is there 30,61 on the line? At 6.pm the temperature in phoenix is the same at the temperature in Tucson.By 9.pm the temperature in phoenix has dropped 2 degrees in Tucson it has dropped 4 degrees by 11.pm the temperature in phoenix has dropped another 3 degress represent each city temperature at 11 pm with an algebraic expression and bar model there are 20 oranges in the basket.if Ayo picks two oranges how many is left in the common lab measurements experiment, how is the crucible heated before adding the hydrated sulfate? #3. The hourly tides (in feet) on a recent day in Seattle, Washington, can be modeled using the sinusoidal function y = 4.5 cos + 5.0, where the height (y) is a function of time (x). Time x=0 represents midnight. What is the water level at 9 a.m.? the oxyanion hole stabilizes the tetrahedral intermediate through which of the following mechanisms? HELP PLEASE!!!!!!!!!!!These are notes taken by a student in class.What would be the best title for these notes?Contributions of Spartan SocietyDevelopments of the Delian LeagueFeatures of Athenian DemocracyInventions of the Hellenic Period In comparison with a flat file system, _____ in a database.A. storage space is reducedB. programs and data are interdependentC. complex requests cannot be handled easilyD. data redundancy is introduced which expression is equivalent to -2w-9+5w+3 assume that in recent years the cost of producing microbrew beer in the u.s. has decreased largely due to technological improvements. at the same time, more and more americans prefer microbrew beer over wine. which of the following best explains the effect of these events in the microbrew beer market?