Mathematics High School

(+5)+(-2)+(+20)
solve

Answers

Answer 1

Answer:

5(x-2)^2=20

5(x^2-4)=20

5x^2-20=20

5x^2-20-20=0

5x^2-40=0

5x^2+0x-40=0

Step-by-step explanation:

hope this is helpfull

Related Questions

Solving a word problem involving a sum and another basic relationship using a system of linear equations.

At a basketball game, a vender sold a combined total of 130 sodas and hot dogs. The number of hot dogs sold was 44 less than the number of sodas sold. Find the number of sodas sold and the number of hot dogs sold.


Number of sodas sold:

Number of hot dogs sold:

Answers

sodas: 130

hot dogs: 86

there is 130 sodas sold if you subtract 44 from 130 you get how many hotdogs

What fraction of the large square is the purple square?

Answers

Answer: I don't what you are asking it should be in color but if you don't know it is 1/7 of the square

Step-by-step explanation:

The circle graph shows how Tremaine divided his time on the computer last week Tremaine's Computer Time Games 25% Homework 20% Research 5% Other 10% Social media 40% Tremaine used the computer a total of 30 hours last week. How many more hours did Tremaine use the computer to play video games than to do research? 6 hours 20 hours 75 hours • 15 hours


Explain the answer choice you choose. I will mark you brainlist!​

Answers

Step-by-step explanation:

25%×24 =6 jahdyheuxlfoodnxhydushgdys

6 more hours did Tremaine use the computer to play video games than to do research.

What is Percentage?

The percentage formula is used to calculate the amount or percentage of anything in terms of 100. Percentage indicates "per hundred" in its most basic form. The percentage formula is used to express a number between zero and one. It is a number that is expressed as a fraction of 100. It is represented by the sign% and is mostly used to compare and find ratios.

Given:

The percent for Video Game= 25%

and, percent for Research = 5%

So, 25% of  30 = 25 / 100 x 30 = 7.5

5% of 30 = 5/100 x 30 = 1.5

So, the the number of hour spend on more on Video game

= 7.5 - 1.5

= 6 hour

Learn more about Percentage here:

https://brainly.com/question/29306119

#SPJ7

What is the volume, in cubic feet, of a rectangular prism with a height of 5 feet, aho
width of 20 feet, and a length of 5 feet?

Answers

Answer:

500 cubic feet

Step-by-step explanation:

5 * 20 * 5 = 500 cubic feet

what is -18x + 9x – 21 + 3 = -99

Answers

Answer:

X = 9

Step-by-step explanation:

The product of two consecutive even numbers is 224. What are these two numbers?

Answers

Answer:

14 and 16

Step-by-step explanation:

They are the ONLY  consecutive even numbers

And also

x and (x+2)

x(x+2)=224 ( product of a number and the consecutive of that number)

x ²+  2x-224=0

(x+16)(x-14) =0

x=-16 or 14

In this case 14 and (14+2)    14 and 16

 

 

The  integers are either 14 and 16 or -14 and -16.

help asap kinda confused D;

Answers

Answer:

its 8

2 to the power of 3 is 8

4/3 (3.14) (8.5^3)
≈ 2571.13
= 2571. 1

Its says its wrong. What did I did wrong?

Answers

Answer:  4/3 (3.14) (8.5^3) = 771341/ 300 = 2571 41/ 300 ≅ 2571.1366667  this is what i got when i did it

Step-by-step explanation:

Wich of the numbers below are factors of 20? Select that apply.

A)3
B)4
C)5
D)10
E)16





​

Answers

4, 5, And 10

4x5= 20

5x4= 20

10x2= 20

A sofa regularly sells for $840. The sales price is$714. Find the percent decrease of the sale price from the regular price

Answers

Answer:

15%

Step-by-step explanation:

Question below in image

Answers

Answer:

m=4 n=5

Step-by-step explanation:

2n-1 = 9 because 1 is negative you add it to the 9 so the equation becomes 2n=10 then divide 10 by 2 and you get n=5

m+8 = 3m subtract the lone m (or 1m) from the left to the 3m which gives you 2m=8 then divide 8 by 2 and you get m=4

plug in the numbers to check.

2n-1=9= (2x5)-1=9 | 10-1=9 | 9=9

m+8=3m= 4+8=(3x4) | 12=12

PLEASE HELP ILL GIVE BRAINLIEST

Answers

Answer:

XY i think

Step-by-step explanation:

Given the following group of numbers, 8, 2, 9,4, 2, 7, 8, 0, 4, 1, which of the following
is/are true?
I. The mean is 5.
II. The median is 4.
III. The mode is 2.

Answers

Answer:

III. The mode is 2

Step-by-step explanation:

Mean: (8+2+9+4+2+7+8+0+4+1)/10 =  45/10 = 4.5

Median: (2+7)/2 = 9/2 = 4.5

Mode: There is no mode since 2 and 8 both appear twice (in other words, since they have the same frequency, it's bimodal)

The closest possible choice is III. The mode is 2, but keep in mind that since the data set is bimodal, there is no single mode.

Mode is 2,4 and 8( three numbers not 1)
Mean is 45/10 is 4.5
Median is4
The correct answer is only 2

Is 0.999 repeating equal to 1? Please explain

Answers

It’s not ,
for example if u got to the store an buy a piece of candy for exactly $1 and u got .99 cents you’ll still need one cent to be able to buy it

Answer:

It is not equal to 1

Step-by-step explanation:

It's not equal to one because even if it is repeating forever it will never ever get to one, just take a look

0.999......  every 9 get's smaller and smaller in value

like 0.9 is bigger then 0.09 and that is bigger then 0.009

so even thought it is always gaining value by every 9 the value it gains is smaller and smaller and will never be equal or larger then 1

Please someone help me
Find the first derivative of cos2(π/4)

Answers

Exact form: (\πcos(2))/(4)

Decimal Form: − 0.32684096

brainliest or a thank you please :)) <3

Find the slope of the line that passes through the points (2,4)and (6,12)

Answers

Answer:

2

Step-by-step explanation:

slope = rise/run

slope = (12-4)/(6-2) = 8/4 = 2

What is the volume of a ball if its diameter is 6 inches? Leave your answer in terms of π.
A) V = 12 π cubic inches

B) V = 36 π cubic inches

C) V = 288 π cubic inches

D) V = 27.75 π cubic inches

Answers

Answer:

B

Step-by-step explanation:

I am assuming that this ball is a perfect sphere.

The volume of a sphere is [tex]\frac{4}{3} *\pi *r^3[/tex]

We have the diameter, and in order to find the radius, we just have to divide by 2. 6/2=3. Now, we have to plug in the 3 to the equation.

[tex]\frac{4}{3} *\pi *3^3[/tex]

3 cubed is 27, so now we have [tex]\frac{4}{3} *\pi *27[/tex]

27*4/3*pi=36pi

The volume of a ball if it’s diameter is 6 inches. It’s is 36 the answer is B

Find the slope of the line that passes through the points (0,-5) and (-2,-3).​

Answers

Answer:

the slope is -1

Step-by-step explanation:

formula for slope is (y2-y1)/(x2-x1)

lets say (-2,-3) is (x2,y2)

-3-(-5)=2

-2-0=-2

2/-2=-1

gggggggggggggggggggggggggggggggggggggggggggggggggggggggr
howmany boxes do i shade

Answers

Answer:

14

Step-by-step explanation:

70%*20=14

you shade 14 boxes :)


Identify all integers less than -14.

Answers

Answer:

An integer is a whole number that can be either greater than 0, called positive, or less than 0, called negative.

Step-by-step explanation:

Answer:

-28, -19, -18, -15,

Step-by-step explanation Cause -14 is more closer to 0 then all 4 of those negative numbers so that mean all 4 of these negative numbers are greater than -14 :) if that makes sense

how far apart are the cities ??

Answers

DONT go into those links they’re scams

You went to your favorite restaurant for dinner, and the food and service was great. You spent $45.78 and want to leave a 20% tip. How much money should you leave for a tip?

Answers

Answer:

a

Step-by-step explanation:

Jacob wants to purchase a new computer, but he does not have enough money in his bank account to pay for one.

Which of these is not an option for Jacob?


He can purchase the computer now using his his debit card.

He can put more money in his bank account and use his debit card to purchase the computer at a later date.

He can buy the computer using cash once he has saved enough money.

He can purchase the computer now using his his credit card.

Answers

Answer:

A is wrong. A debit card uses the money you have.

explain why we need to always balance algebraic equations.

Answers

What you do to one side of an equation you must do to the other in order for it to remain balanced. It’s important to remember that equations have an equal sign and expressions do not. We balance or solve equations, but simplify or evaluate expressions.

Please no links . What’s the answer ?

Answers

Answer:

600 square feet

Step-by-step explanation:

I notice it says "Estimate" in bold. Therefore, you would round all of the measurements. They're all pretty simple to round (to the nearest tens place). From here, you subtract the length of the large room from the length of both rooms. So, 50 - 30 = 20. This is the length of the small room. We now multiply this by the width of the small room (since area of a rectangle is length * width) and we get:

20 * 30 = 600, our final answer

Hope it made sense. I would appreciate Brainliest, but no worries.

Is it, a solution or, NOT a solution?

Answers

Answer:

Perosnally i think it is not a solution but let me check that for you!

Step-by-step explanation:

Answer:Answer x=15 and the answer for x=6 will be false!

Step-by-step explanation:X=6 is not a solution but the correct answer is 15 .First we know that 5+5=10,then if we add 10+5 that will give us 15.

what is the volume of a sphere with an diameter of 57.1 cm rounded to the nearest tenth of a cubic centimeter

Answers

correct answer is 97478.08cm^3

Can someone solve these rational expressions showing work thanks

Answers

Answer:

[tex]\frac{x-5}{\left(x-3\right)\left(x+2\right)}+\frac{2}{\left(x-3\right)\left(x+2\right)}=\frac{1}{2+x}[/tex]

Step-by-step explanation:

[tex]\frac{x-5}{\left(x-3\right)\left(x+2\right)}+\frac{2}{\left(x-3\right)\left(x+2\right)}[/tex]

[tex]\mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}[/tex]

[tex]=\frac{x-5+2}{\left(x-3\right)\left(x+2\right)}[/tex]

[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-5+2=-3[/tex]

[tex]=\frac{x-3}{\left(x-3\right)\left(x+2\right)}[/tex]

[tex]\mathrm{Cancel\:the\:common\:factor:}\:x-3[/tex]

[tex]=\frac{1}{2+x}[/tex]

quick help plzz!!!!!!!

Answers

It is B I’m pretty sure

Scott took 77 math tests in one semester. His scores on the tests were: ​ 89 ,73 ,84 ,91 ,87 ,77 ,94


What was his mean test score?
​

Answers

Answer:

85

Step-by-step explanation:

Scott took 7* math tests in one semester. His scores were 89 , 73 , 84 , 91 , 87 , 77 , 94.

Find the mean. To solve for the mean, add all the scores together, and divide by the amount of tests he took:

(89 + 73 + 84 + 91 + 87 + 77 + 94)/7

(595)/7 = 85

Scott's mean test score is 85.

~

Answer:

85

Step-by-step explanation:

1. Add up all the numbers

=595

2. Dvivde it by how many numbers their are.

=7

3. Divide

595/7

=85

Other Questions
Give a scenario in which a new ecosystem would be created Aram has been studying the mathematics behind pinball machines. He made the following diagram of one of hisobservations. Determine the measure of the missing angle. if 3 4 5 was a pythagorean triple choose all answers that would satisfy the pytagorean therom A survey asked 100 adults about car ownership and ride-sharing apps. Of the 38 people without a car, 29 have ride-sharing app on their phone. A total of 47 people have a ride-sharing app on their phone.What percentage of people surveyed who own a car have a ride-sharing app on their phone? Round to the nearest whole percent.Enter the correct answer in the box. In a sample of double stranded dna if 19% of the nitrogenous bases are guanine what percent of the nitrogenous bases are adenine PLZZWhich is NOT a characteristic of a vertebrate?A-have bloodB-have exoskeletonC-have a nervous systemD-have backboneE-have protective skin covering Jada has d dimes. She has more than 30 cents but less than a dollar.Write two inequalities that represent how many dimes Jada has. .In your own words, explain what the Enlightenment period was about? The Manchester Corporation manufactures wooden pictures frames. In order to better manage costs, the Manchester Corporation had previously developed the following standards for the manufacture of its product: Each unit should have 3/4 of a pound of direct materials purchased at $12 per pound. Each unit should be produced in 48 minutes at a direct labor cost of $16 per hour. The company had the following detailed retails: Actual production was 20,000 units using 14,600 pounds of direct materials at a total cost of $168,000 and required 11,000 direct labor hours at a total cost of $190,000. What financial problem contributed to the end of the Roman Republic?Enslaved laborers wanted to be paid, and landowners did not agree to this.Small farms failed due to bad harvests, which caused workers to lose their jobs.Military spending created too much debt and forced spending cuts in other areas.Unemployment grew as landowners replaced paid workers with enslaved laborers. What was the purpose of the Proclamation of 1763? to protect the colonists to punish the settlers to make money for the war to reward American Indians 2. The group who founded Plymouth Colony and wanted to separate from the Anglican Church are known as '.'.' . 'i the_ i . a, The Puritans b. The Pilgrims, c. The Party Animals ' '' ' ' What type of chart is used to help organize study and predict genetic inheritanc distance between the points (-4,-2) and (6,-2) MIDDLE SCHOOL: What are the three types of energy used when cleaning? (Please write them in order of occurrence) The elements in which section of the periodic table are the most stable and rarely react with other elements? metalsB metalloids noble gases D nonmetals x=-8 y=x+8 what is the solution What were the causes of westward Migration? Which Roman emperor was the first to convert to Christianity? A. Nero B. Diocletian C. Constantine D. Paul Use the images below to answer the question. 2. What makes all of the samples different from each other?