Mathematics College

Ella is solving the equation (x+5)2=0 . She writes that the solutions are x=5and−5 .

Anne looks at her work and disagrees. She says that only x=−5 is a solution. Who do you agree with? Explain your reasoning.

Answers

Answer 1

Answer:

Anne

Step-by-step explanation:

Let's solve it by replacing x by 5, then -5.

(5+5)2=0

10*2=0

20=0

(-5+5)2=0

-5 and 5 cancel each other out, and 0 times anything is 0.

0=0

So Anne is correct.

--

hope it helps

Related Questions

help please, i need it asap. thank you

Answers

Answer:

x = 5

Step-by-step explanation:

[tex]\frac{3}{x}[/tex] = [tex]\frac{4.5}{7.5}[/tex]

cross multiply

4.5x = 7.5(3)

4.5x = 22.5

Divide

x = 5

What is the value of | -5 | ?

Answers

Answer:

if u mean absolute value it is 5.

the value is always positive an dmeans how far is it from the numberline

Step-by-step explanation:

The table shows Kayden’s quiz scores for a semester. Consider this is the whole set of quizzes. Consider that Kayden took all the possible quizzes for the semester. What are the mean and the standard deviation, rounded to the nearest hundredth, for the quiz data?
Calculate the Margin of error, and give the 95% confidence range.
X

45

48

42

47

43

Mean=





Standard Deviation =

Answers

Answer:

huh what do you mean

Step-by-step explanation:

im really sorry

PLEASE HELP!!! Area of trapezoids and triangles ​

Answers

i want to believe 30...?

Answer: 54 square inches and 18 square inches

Explanation:

The formula for the area of a trapezoid is the sum of the top and bottom bases divided by 2, multiplied by the height.

In the first picture the bases are 6 and 12, and the height is 6, so the formula would look like this:

[tex]\frac{6+12}{2} *6[/tex]

=[tex]\frac{18}{2} *6[/tex]

=[tex]9*6[/tex]

=54

54 [tex]in.^{2}[/tex] is the answer to the first problem.

Following the same method, we can do the next problem the same way:

[tex]\frac{4+8}{2} *3[/tex]

=[tex]\frac{12}{2} *3[/tex]

=[tex]6*3[/tex]

=18

18 [tex]in.^{2}[/tex] is the answer to the second problem.

13. Jessica has taken 8 quizzes. The mean of her scores is 92. Her first 6 scores are shown.
96, 90, 88, 92, 94, 90
If Jessica got the highest score possible on her seventh quiz, what score did she get on her
eighth quiz? What would be her median score Show your work and explain your reasoning.

Answers

Answer: Median= 91; 8th quiz score=86

Step-by-step explanation: The sum of the scores is 8×92=736. Subtract the 6 given scores and then a 100 for the seventh quiz to find the score she got on the 8th quiz, this is an 86. Now that you have all the scores, arrange them all in the least to greatest order and find the average of the middle two numbers (median), which is 91!

Find the range of the following data set. 451, 376, 380, 470, 546, 481
​

Answers

Answer: 170

Steps:
Range- the difference between the greatest and smallest value of a data set.

546 - 376 = 170

Answer:

170.

Step-by-step explanation:

jus did it

can i get brainliestttt

please help me out on this..............

Answers

Answer:

Option #2: 32 ÷2

Step-by-step explanation:

Take Note: There are 2 cups in a pint.

Since we are converting cups TO pints.... the number should (logically) be smaller. That eliminates the last two options.

Referring back to our note, it is only sensible to eliminate the first option since there are only 2 cups per pint, NOT 4.

In the end, you should have gotten option 2 which is 32÷2.

BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS

Answers

6 and 8 are vertical angles

A large clock in a town square has a minute hand that is 10 feet long. Which value is the best estimate of
how many degrees the minute hand moves from 4:00 - 4:40?

Answers

Answer: 240 degrees

Step-by-step explanation: minute hand makes 360 degree circle in hour.

There is no influence for the length of hand in this case.

40 minutes is 2/3 hours. 2/3 ·360 degrees

Which graph represents an exponential function?

Answers

The second one. The graph grows as x approaches infinity, without touching the origin.

One angle of a right triangle measures 75º. What is the measure of the other acute angle?

Answers

15
All triangles have 180 degrees. A right angle has 90 degrees. 90+75=165 180-165=15

Five less than twice the sum of a number n and twelve

Answers

5-2(n+12) that’s the equation. I hope this helped

What is the value of 3 1⁄4 increased by 2 1⁄6?

Answers

65/12 is they answer you’re looking for

40 POINTS !! 40 POINTS !!

PLEASE HELP , DONT SKIP !

NO LINKS OR FILES.

Answers

Answer:

2 potatoes

Step-by-step explanation:

10 ×1/5 =2×1=2

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

Speed equals distance multiplied by time. *
A: True
B: False

Answers

True because I learned it literally right now
A: True

spear does equal distance multiplied by time

You may remember that the perimeter of a rectangle is P=2(W+L) where W is the width and L is the length. Suppose that the perimeter of a rectangle is 44 feet, and the length is 8 feet more than the width. Find the width of the rectangle, in feet.

Answers

Answer:

44=2[(w+8)+w]

44=4w+16

28=4w

w=28/4

w=7feet

How many solutions can be found for the equation 5x + 3(x − 1) = 10x − 2x − 3?

Answers

Answer: Infinite many solutions

Step-by-step explanation:

Given

5x+3(x-1)=10x-2x-3

Expand Parenthesis

5x+3x-3=10x-2x-3

Combine like terms

8x-3=8x-3

Subtract 8x on both sides

8x-3-8x=8x-3-8x

-3=-3

Add 3 on both sides

-3+3=-3+3

0=0

Any number will work on both sides, therefore, there are infinite solutions

Hope this helps!!: )

Please let me know if you have any questions.

PLESE HELP WILL MARK BRIANLIEST

Answers

Answer:

1. a=-9  b=13  c=-1

2. a=1  b=1  c=-11

which equation has the solutions x equals 1 plus or minus the square root of 5​

Answers

Answer:

d. x2 – 2x – 4 = 0

Step-by-step explanation:

110% into simple fraction form​

Answers

Answer:

11/10 or 1 1/10

Step-by-step explanation:

110%=110/100

Now let's simplify 110/100:

11/10

Hope this helped! :)

Answer:

1 1/10

Step-by-step explanation:

Hope this helps and have a great day!!!!

Help due today asap Plaese help

Answers

Answer:

A

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

got it right on the test

Find the perimeter of the parallelogram shown.
7 yd
8 yd
5 yd
.
A26 yd

Answers

Answer:

It will be half of the original size.

HOPE I HELPED!

GIVE BRAINLIEST PLEASE!

Step-by-step explanation:

soup is 3 cans for $0.82, so each can of soup is $0.2733. how much does it cost for each one?

Answers

It would be $0.27 for each can

Which graph shows the solutions to the inequality? Please help ASAP!

Answers

Answer:

A1/A2=b1/b2 is not equal to C1/c2

HELPP QUICKK PLEASSEEE​

Answers

Answer:

Questions are blur can you post a much clearer one?

The difference is 6?

Answers

Answer:

i dont know

Step-by-step explanation:

there is no questions

Please can someone help me thank you

Answers

Answer:

(a) Rome= 11 degrees

Munich= 5 degrees

Difference = 11-5 = 6 degrees

(b)

Oslo= 2 degrees

At 6pm= 2+5= 7 degrees

Which value of x makes the equation 9=34x true?
Select one:

x = 12

x=814

x = 6

x=634

Answers

did you write it wrong none of the options are possible answers the real answer is 9/34

What is the value of y=8−3x when x=5?

When x=5, y=

Answers

Answer:

-7 will be the answer.

Step-by-step explanation:

By Putting the value of x, we get:

y=8-3x

y=8-3(5)

y=8-15

y= -7

Which is a true statement based on the box plots below?
I WILL GIVE BRAINELY BECAUSE I NEED THIS DONE FAST BY TODAY

Answers

Question:

Which is a true statement based on the box plots below?

Answer:

It is C because the interquartile range is larger than the other one.

Hope This Helps :)

Other Questions
Which of the following was not taken over by Germany prior to world war 2 Abraham Maslow suggested that those who fulfill their potential have satisfied the need forreciprocal determinism.immediate gratification.self-actualization.free association. HURRY WILL GIVE BRAINLIESTPrompt:Explain one event that escalated American involvement in Vietnam and two events in the war that began to turn American public opinion against US involvement there. what new functional group is formed during an elimination reaction chem 3a berkeley What is the first step that mustbe taken in the dissolution of acorporation? What is the vertex of f(x) = -2|x + 1| + 2? How was Simn Bolivar influenced by the American and FrenchRevolutions?1 pointA He wrote a Declaration of Rights for Latin American countries ruled by France.B He observed the American Revolution's successes and brought democracy to Cuba.C He adopted Enlightenment ideals and began revolutions against Spanish authority.D He fought in the French Revolution and returned to Mexico to lead a revolutionhimself. What does this mean?In every stage of these Oppressions We have Petitioned for Redress in the most humble terms: Our repeated Petitions have been answered only by repeated injury. A Prince, whose character is thus marked by every act which may define a Tyrant, is unfit to be the ruler of a free people. Which of the following is not a plant adaptation to land?a. ability to undergo photosynthesisb. protection of the embryo in maternal tissuec. development of flowersd. presence of vascular tissuee. seed production Please answer this for 15 points please dont put in a link. Help please show work how to get the answer. At Dela's Dell, Dela fills containers with homemade vinaigrette salad dressing. The table shows the amount of vinegar and olive oil used for the dressing.Number of containers Vinegar (tsp) Olive Oil (tsp)26.514At this rate, how much vinegar and olive oil will be used to make 4 containers of salad dressing?O Dela will use 5 teaspoons of vinegar and 9.5 teaspoons of olive oil to make 4 containers of salad dressingODela will use 8 teaspoons of vinegar and 9.5 teaspoons of olive oil to make 4 containers of salad dressingO Dela will use 5 teaspoons of vinegar and 26 teaspoons of olive oil to make 4 containers of salad dressingO Dela will use 6 teaspoons of vinegar and 26 teaspoons of olive oil to make 4 containers of salad dressing juvenile court matters fall into how many different categories of supervision? According to the United States Constitution, if a federal official is impeached, the charges must have originatedA)in the Senate.B)in the Supreme Court.in the House of Representatives.D)in the Chief Justice's chambers. Butch's Auto Shop services 5,000 cars annually at an average price per car of $1,000. He and his staff expend 10,000 labor hours at an average rate of $50/hour. Overhead is 1.33 times labor cost. Material is $500,000.What percentage of Butch's total productivity input is due to labor cost? Mark sorted a set of shapes into two different categories. Explain, what two attributes were used to sort the shapes. help please!! what is one cause for the 21,000 protein encoding sequences in the human genome producing between 200,000 and 1 million different proteins? In the year 2003, a person bought a new car for $18500. For each consecutive year after that, the value of the car depreciated by 12%. How much would the car be worth in the year 2005, to the nearest hundred dollars? What are winds that blow in a certain direction most of the time and can produce surface currents called?the Coriolis effectsurface windsprevailing windsocean winds Which of the following concerning unearned revenues is NOT true? O They are recorded as a revenue account entry. They are found on a balance sheet. Adjusting entries are made at the end of a period to report unearned revenues. O They are receipts for services or products that will be performed or delivered at a future date.