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
BARSIC [14]
3 years ago
14

harry is trying tq solve the equation y=2x^2 -x-6 using the quadratic formula he has made an error in one of the steps below

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
3 0

Answer:

Hello :

y = 2x² - x -6

y = 2 ( x² - 1/2 x - 3)

y = 2 (x² -1/2 x + 1/16 -1/16 -3)

y = 2 (( x - 1/4 )² - 49/16).....  the quadratic formula

y = 0 :  ( x - 1/4 )² - 49/16 = 0

( x - 1/4 )² - (7/4)² = 0

( x -1/4-7/4)( x -1/4+7/4)=0

(x -2)(x + 3/2) = 0

x - 2 = 0 or x + 3/2 =0

x = 2 or x = - 3/2



You might be interested in
Chef Fabio does beginning inventory on Thursday night and finds that he has $1456 in food products in the restaurant. Throughout
Leto [7]

Using it's concept, it is found that the percentage of his sales that area food costs is of 29.62%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = \frac{a}{b} \times 100\%

In this problem, he has $1643 out of $5546 in food, hence the percentage is given by:

P = \frac{1643}{5546} \times 100\% = 29.62%

More can be learned about percentages at brainly.com/question/10491646

#SPJ1

7 0
2 years ago
Can you help me with question 5
irina1246 [14]
Pretty sure it’s b

Because it’s by 2 at first then it’s by 125



7 0
3 years ago
A family pays $45 each month for cable television. The cost increases 7%.
Studentka2010 [4]
The initial cost is $45. To determine the increase, you need to follow two steps.

First you have to find what 7% of the original $45 is. This will tell us how much the cost will increase by.
To find 7% of $45, you need to multiply .07 x 45 = 3.15
This tells us that 7% of $45 = $3.15

Next, you have to add the increase to the original cost. This will be the new monthly cost.
$45 + $3.15 = $48.15
6 0
4 years ago
Read 2 more answers
Need the answer please and with work. I had put B but that is incorrect​.
igor_vitrenko [27]

Answer:

Step-by-step explanation:

You answer goes to minus infinity. There is no answer and you are correct.

6 0
3 years ago
A container of oatmeal is cylindrical. It is 9 inches tall and the base has a radius of 2 inches. There is 6 inches of oatmeal r
Bas_tet [7]

Answer:

a cylindrical carton of oatmeal with radius 3.5 in. is 9 in. tall. all cardboard, how much cardboard is used to make the oatmeal carton?

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Susan's uncle from Japan promised to give her 41 g of gold. The local jewelry exchange will buy gold for $1286 per ounce.
    7·1 answer
  • Slove the question please
    15·2 answers
  • Transform Linear Attempt 2 Q4
    11·1 answer
  • 1/3 of 5th grade class absent there were 4 students absent. How many students in class
    14·2 answers
  • May someone help me on this question please
    6·1 answer
  • Express in Simplest form 3:10
    15·1 answer
  • A cylinder shaped-water change has a diameter of 10 M and a height of 10 M. What volume of water does the tank contain when it i
    8·1 answer
  • Answer the problem below
    12·1 answer
  • Does the following relation represent a function?
    14·2 answers
  • What is NOT a function of a wetland?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!