If A=−2x+8 and B=2x−4, find an expression that equals 2A+B in standard form.

Answers

Answer 1

Answer: -2x + 12

Step-by-step explanation:

2A + B = 2(-2x + 8) + (2x - 4) = -4x + 16 + 2x - 4 = -2x + 12


Related Questions

According to the website www.olx.uz, monthly rent for a two-bedroom apartment has a mean of
$250 and a standard deviation of $100 in the city of Andijan. The distribution of the monthly rent does not
follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample
of 40 two-bedroom apartments and finding the mean to be at least $275 per month?

Answers

Using the normal distribution and the central limit theorem, it is found that there is a 0.0571 = 5.71% probability of selecting a sample  of 40 two-bedroom apartments and finding the mean to be at least $275 per month.

In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

It measures how many standard deviations the measure is from the mean.  After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.

In this problem:

The mean is of $250, hence [tex]\mu = 250[/tex].The standard deviation is of $100, hence [tex]\sigma = 100[/tex].The sample is of 40 apartments, hence [tex]n = 40, s = \frac{100}{\sqrt{40}}[/tex].

The probability of selecting a sample  of 40 two-bedroom apartments and finding the mean to be at least $275 per month is the p-value of Z when X = 275, hence:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

By the Central Limit Theorem

[tex]Z = \frac{X - \mu}{s}[/tex]

[tex]Z = \frac{275 - 250}{\frac{100}{\sqrt{40}}}[/tex]

[tex]Z = 1.58[/tex]

[tex]Z = 1.58[/tex] has a p-value of 0.9429.

1 - 0.9429 = 0.0571

0.0571 = 5.71% probability of selecting a sample  of 40 two-bedroom apartments and finding the mean to be at least $275 per month.

You can learn more about the normal distribution and the central limit theorem at https://brainly.com/question/24663213

Pls help stuck on it

Answers

The ordered pair for the bank is (4, 1)

Answer:

4,-1

Step-by-step explanation:

Please like!♥

Solve the system of equations by the substitution method.
y = 2x + 1
5y-7x = 11
.....
Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
O A. The solution is (Simplify your answer. Type an ordered pair.)
OB. There are infinitely many solutions.
O C. There is no solution.

Help

Answers

Answer:

(2,5) -- that is, x is 2, and y is 5, so it would be choice A.

Step-by-step explanation:

5(2x+1)-7x=11

10x+5-7x=11

3x=6

x=2

y=2(2)+1=5

Some one help me? ill give 50 points

Answers

Answer:

v=[tex]\frac{(w+v)/t}{2}[/tex]

Step-by-step explanation:

just inverse operations and you will always get your answer :)

24,761 divided by 24

Answers

Answer:

1031.70833333

Step-by-step explanation:

2/3x + 4 = 2 Solve the equation algebraically show work to support the answer

Answers

Answer:

x = -3

Step-by-step explanation:

2/3x + 4 = 2

2/3x = 2 - 4

2/3x = -2

2x = -2 * 3

2x = -6

x = -6/2

x = -3

Danielle earns a 7.75% commission on everything she sells at the electronics store where she works. She also earns a base salary of $800 per week. How much did she earn last week if she sold $4,700 in electronics merchandise? Round your intermediate calculations and answer to the nearest cent.

Answers

Answer:

1164.25

Step-by-step explanation:

what is linear spline?​

Answers

9Linear splines

The linear spline represents a set of line segments between the two adjacent data points (Vk,Ik) and (Vk+1,Ik+1). ... The linear spline is constructed for each interval V = [Vk,Vk+1] independently and it matches the data values (Vk,Ik) for k=0,1,...,n.

A tree of unknown height casts a shadow that is 18 feet long. If a person that is 5 ft 7 in casts a shadow that is 4 ft long, then how tall is the tree in feet?

Round your answer to the nearest integer. Do not include feet in your answer.

Answers

Answer:

25.

Step-by-step explanation:

5 ft 7 in = 5.583 ft.

We have 2 similar triangles here.

If h is the height of the tree, then:

h / 5.583 = 18/4

h = 18*5.583/4

h = 25.12 ft

The height of the tree is approximately 25.12 feet.

What is Ratio?

The ratio is defined as a relationship between two quantities, it is expressed as one divided by the other.

The ratio of the shadow lengths is equal to the ratio of the object heights.

In other words, if we let H be the height of the tree in feet and h be the height of the person in feet, we have:

H/h = 18/4

We can find h by converting the person's height to feet. Since 1 inch is equal to 1/12 foot, the person's height in feet is 5 + 7/12 = 5.58 feet.

Substituting this value into the equation above and solving for H, we get:

H = (18/4) x 5.58 feet

= 25.12 feet

Therefore, the tree is around 25.12 feet tall.

Learn more about the Ratio here:

brainly.com/question/1504221

#SPJ2

whats 2077-210?
its for a thing im doing.

Answers

Answer:

1867

Step-by-step explanation:

What do you need it for?

in the actual room, the distance between the front and back walls is 8 feet. what is the actual length of the front wall, in feet?

Answers

Answer:

8 feet

Step-by-step explanation:

it actually will be 8 feet

3. Find to the nearest thousandth: log7 80

Answers

Answer:

I believe 1000

Step-by-step explanation:

Help meeeeeeeeeeeeedsddsss9

Answers

Answer:

2(x + 3) <9

Step-by-step explanation:

Two times the quantity of a number increased by 3 is less than 9

       2  ·                                          (x + 3   )                           < 9    

     = 2(x + 3) <9

a jar has 654 jelly beans emily says the jar has 710 jelly beans, Find the percent error of emily's estimate

Answers

Answer:0.07% because 710-654 is 56 and 56 divided by 710 is 0.07

Answer:

8.56%

Step-by-step explanation:

Find the difference between the actual and estimate, this is the error:

710 - 654 = 56

Find the percent error, which is the error over the actual:

56/654*100% = 8.56%

Yosef typed a 36 word paragraph in 2/3 minute. What is his typing speed, in words per minute?

Answers

Answer:

the answer is:

Yousef typing speed, in words per minute is

equal to

54 words

minute

here is a list of numbers: 8 7 12 7 11 10 7 12

a) find the median
b) the range
c) the mode​

Answers

Answer:

Ascending order = 7,7,7,8,10,11,12,12

a) n = 8

= median = (n/2+(n/2+1)/2

= (4th term + 5th term)/2

= 8+10/2

= 9

b) range = 12-7 = 5

c) the mode = 7 (highest occuring value)

The median of the given list of numbers is 9.

The range of the given list of numbers is 5.

The mode of the given list of numbers is 7.

We have,

a) To find the median of a set of numbers, we arrange them in ascending order and determine the middle value.

If there is an odd number of values, the median is the middle number.

If there is an even number of values, the median is the average of the two middle numbers.

Arranging the numbers in ascending order: 7 7 7 8 10 11 12 12

There are eight numbers in this set, so the middle two numbers are 8 and 10.

Taking their average, the median is (8 + 10) / 2 = 9.

b) The range is the difference between the highest and lowest values in the set.

The lowest value is 7, and the highest value is 12.

So the range is 12 - 7 = 5.

c) The mode is the value that appears most frequently in the set.

In the given list, the number 7 appears three times.

Therefore,

The median of the given list of numbers is 9.

The range of the given list of numbers is 5.

The mode of the given list of numbers is 7.

Learn more about the median here:

https://brainly.com/question/28060453

#SPJ2

evaluate f(2) and lim f(x) where f(x)=5x^3+3x+1 ​

Answers

substitute 2 into the equation
f(2) = 5(2)^3 + 3(2) + 1 = 13 + 6 + 1
= 20

Determine if the data below represents a function. Explain your reasoning. (3, 2), (4,7), (8, 12). (10, 15)

Answers

Answer:

the data that is shown represents a function

Step-by-step explanation:

the easiest way to know is by looking at the x-variable. Each y-variable needs one x-variable. the x-variable should not be seen paired with another y-variable.

can anyone slove this question pls ​

Answers

we have: -10/4 = -2.5 ⇒ -2 > -2.5 > -3

ANSWER : -2 and -3

ok done. Thank to me :>

can someone please help me

Answers

Answer:

The mode is 31

good luck naka

The mode is 31 good luck hahahah

William has $22 to buy strings for his guitar. Each set of strings costs $5.
How many sets of strings can he buy? Do not include units in your answer.
Answer here
SUBMIT

Answers

Answer:

4

Step-by-step explanation:

4 sets of strings will cost:

4×5=20

He will have $2 left over. Not enough to buy another set.

Or 5x<=22 DIVIDE BOTH SIDES BY 5

x <= 4.4 since he cannot buy .4 sets (this is a fraction of a set) He can only buy 4 sets

What is the GCF of 9y and 12y?

Answers

The greatest common factor is 3y.

9 - 1,3,9
12 -1,3,4,12

There is a y in both terms.

So, 3y is the greatest common factor.

pls help me due t
in 1 hrs I'll give u brainliest answer

If x²+y²=125 and xy=22, find the value of (x+y)².

Answers

[tex]\text{Given that,}~x^2 +y^2 = 125 ~ \text{and}~ xy =22\\\\(x+y)^2 = x^2 +y^2 +2xy = 125 +2(22) = 169[/tex]

[tex]\huge \bf༆ Answer ༄[/tex]

Here's the solution ~

[tex] \sf(x + y) {}^{2} [/tex]

[tex] \sf {x}^{2} + {y}^{2} + 2xy[/tex]

[ by using formula ]

[tex] \sf125 + (2 \times 22)[/tex]

[tex] \sf125 + 44[/tex]

[tex] \sf169[/tex]

I hope it helps ~

- The width of a rectangle is 4x – 1 feet and the length is 2x + 6 feet. Find the perimeter of the rectangle.


Answers

Answer:

12x + 10 feet

Step-by-step explanation:

Perimeter = 2( length + width)

= 2[ 2x + 6 + (4x -1)]

= 2( 2x + 6 + 4x - 1)

= 2( 6x + 5)

= 12x + 10

f(x) = 11 – 5x for f(9)

A.-46
B.-44
C.44
D.45

Answers

Answer:45

Step-by-step explanation: math solver

Answer:

the answer is not there. the answer is -34

Step-by-step explanation:

11-5(9) .        11-45

heeeeeeeeeeeeeeeeeeeelp me plssssssssssss

Answers

Answer:

Yep linear functions look like diagonal lines. Vertical lines have a slope of 0 whilst horizontal lines aren’t even defined. Diagonal and horizontal don’t work since horizontal aren’t defined so if one doesn’t work then it won’t work.

So (a) is the answer

Diagonal lines are linear functions

Answer:

Diagonal lines........

What is the equation in standard form of the line y= 1/9x +5

Answers

Answer:

answer below

Step-by-step explanation:

9(y = 1/9x + 5)

9y = x + 45

-x + 9y = 45

x - 9y = -45

The volume (V) of a rectangular pyramid can be determined by using the following
formula.
Iwi
V
Where l= the length of the rectangle, w = the width of the rectangle, and h = the heigh
of the pyramid, what is the result of solving this equation for w?
Ow=3V-th
O2 - V +3 - th
V3
th
3V
O w=

Answers

Answer:

[tex]{ \rm{V = \frac{lwh}{3} }} \\ \\ { \rm{3V = lwh}} \\ \\ { \boxed{ \rm{ \: w = \frac{3V}{lh } \: }}}[/tex]

About how many years ago did Jesus live

A.10,000
B. 5,000
C. 2,000
D. 1,000

Answers

Jesus was born in 4 BC (more or less) and live to be 33 years old, which means His death was around 29 AD (more or less). That was precisely, 1992 years ago

The width of a rectangle is 7ft less than the length. The area of the rectangle is 228 square feet. Find the length and width

Answers

Set up figure, side length x, and width x-7. Set equation up

[tex]228 = (x)(x - 7) \\ 228 = {x}^{2} - 7x \\ {x}^{2} - 7x - 228 = 0 \\ (x - 19)(x + 12) = 0 \\ x = - 12 \\ x = 19[/tex]

Since the value x, cannot be negative, x is equal to 19. Therefore the length is 19, width 12 (19-7)

Other Questions
a magnesium ion has 12 protons and a charge of 2 . how many electrons does it contain? In the triangle below,x = [ ? ] cm. Round to thenearest tenth.12 cm170 90 A baker uses yeast to make bread dough then lets it sit for one hour. During that time the dough doubles in size. What process is responsible for this effect?. what is the term to term rule for 2 6 18 54 162 Help me to answer this. where is the atomic mass on the periodic table Review this excerpt from the article about Journeymen.A journeyman is commonly expected to have a wide range of experience, covering most fields of their trade. For example, a non-journeyman worker of some 20 or 30 years' experience may have most or all of their experience in only residential, commercial, or industrial applications. A journeyman, however, has a broad field of experience in residential, commercial, and industrial applications.The references to the experienced non-journeyman workerA. show theres no need to become a journeymanB. describe the fields of study common for journeymenC. reinforce the idea that learning on the job is a positive practiceD. highlight the broad skill set of a journeyman where was the first retail christmas tree lot in america Find f (x) for f(x) = ln(x^4 + e^(2x)). Hey guys can you help me solve this problem "how long will it take a car travelling 30m/s to come to stop ifs its acceleration is -3 m/s2". PLS ANSWER QUICK!!! Which law prohibits discrimination against federal government employees with disabilities?A. The Civil Rights Act of 1991B. The Equal Pay Act of 1963C. The Fair Labor Standards ActD. The Rehabilitation Act of 1973 a member of congress votes in favor of a bill as a result of receiving many letters of support for the bill from constituents. which form of democratic representation best describes this voting decision? PLS I REALLY NEED HELP If the relative positions of the sun and moon affect the oceans tides, why would it be helpful for sailors and other people who work on the ocean to understand patterns in the Earth-sun- moon system? En la maduracin del cerebro que inicia desde la nuca hasta la frente la ltima rea que madura es la corteza prefrontal que ayuda a calibrar riesgos, se ocupa del control de impulsos, el juicio y toma de decisiones. 45 + 30 = 100 - wAnswer:Explanation: If a truck leaves on Friday traveling 55 mph and is able to travel 10 hours per day, how many miles will it have driven after Monday? Help bell buissness help bell bel If a nerve cell stopped functioning, the cell would I need help on math please Can someone plz help me? :(