1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pochemuha
2 years ago
11

Amy and Richard each solved an equation using the quadratic formula.

Mathematics
1 answer:
artcher [175]2 years ago
8 0

The mistake each student made and what each student needs to do to fix their mistake is;

  • Amy didn't include the negative sign for the 20, so she should include it

  • Richard added a negative sign underneath the radical

<h3>Quadratic equation</h3>

x² - 6x + 8 = 0

x = - b ± √b² - 4ac / 2a

where,

  • a = 1
  • b = -6
  • c = 8

x = - b ± √b² - 4ac / 2a

= -(-6) ± √(-6)² - 4(1)(8) / 2(1)

= 6 ± √36 - 32 / 2

= 6 ± √4 / 2

= 6 ± 2 / 2

x = 6/2 + 2/2 or 6/2 - 2/2

= 3 + 1 or 3 - 1

x = 4 or 2

Learn more about quadratic equation:

brainly.com/question/1214333

#SPJ1

You might be interested in
CAN ANYONE PLEASE HELP ME WITH MY HOMEWORK ILL DO ANYTHING JUST PLEASE HELP ME
Natalija [7]

Answer:

504 passengers

Step-by-step explanation

3 0
3 years ago
Read 2 more answers
I need help Asap please show me work
Kruka [31]

Answer:

392

Step-by-step explanation:

2((7 - 10)^2 + 5)^2

2((-3)^2 + 5)^2

2(9 + 5)^2

2(14)^2

2(196)

392

5 0
3 years ago
Read 2 more answers
The correlation coefficient (r) between the number of miles driven x and the number of gallons of gasoline used y is 0.925
luda_lava [24]
The correct answer is 85.6 hope that helps
3 0
3 years ago
Read 2 more answers
What is 6 1/2 - 1 9/10
weqwewe [10]
6 \frac{1}{2} -1 \frac{9}{10}=6 \frac{5}{10} -1 \frac{9}{10}  =6.5-1.9=4.6=4 \frac{6}{10} =4 \frac{3}{5}
7 0
3 years ago
Read 2 more answers
Levi walks dogs from 8am to 3 pm He walks 2 dogs per hour. How many dogs he walk in a day?
Licemer1 [7]
8am - 3pm is a total of 7 hours per day. If he walks 2 dogs per hour, then that means he walks 14 dogs in one day

2 dogs • 7 hours
5 0
3 years ago
Other questions:
  • Aspace 5 1/4 ft wide and 2 1/3 feet long has a area measuring most nearly how many square feet​
    11·1 answer
  • 2X + 4Y = 18 4X + 2Y = 24
    8·2 answers
  • 5.8 = x/2.2<br><br> A: 127.6<br> B: 0.37<br> C: 3.7<br> D: 12.76
    11·2 answers
  • There is a book sale at the libaray the price for each book is $4 which expression can be used to show how much money the librar
    9·1 answer
  • URGENT: I need to solve this problem: 4 - (-6), but that's not all, I'm not really good at math and I need step by step answers
    7·1 answer
  • Part B. Hector said there will be 55 gallon of water in the pool after 11 minutes. Explain how Hector could have found his answe
    9·1 answer
  • Cual es la magnitud de la aceleración angular de una llanta de un automóvil que adquiere una velocidad angular de 350 rad/s en 2
    8·1 answer
  • Match each value on the left with the number on the right that includes that value.
    11·1 answer
  • Represent √10 , √17 and √13 in a number line.​
    13·1 answer
  • Multiply: 6,415x5 A 32,055 B 31,975 C 32,075 D 30,075​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!