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
Enter an equation for the word sentence. Use the variable c for the cost.
sveta [45]

Answer

3x6=18 or 3c=18

Step-by-step explanation:

I don't know in what level of mathematics you're in. It depends...

c= cost  c=6

7 0
3 years ago
Read 2 more answers
What is triangle similarity
Lena [83]
If two triangles are similar their angles are all the same.

7 0
4 years ago
Please help I don’t understand how to do this
horsena [70]

Answer:

DOC = 70

BOC = 110

AOD = 110

Step-by-step explanation:

AOB is supplementary to BOC and AOD, which means together they equal 180. 180-70=110, so BOC and AOD are both 110.

AOB and DOC are vertical angles to each other, so are AOD and BOC. Vertical angles are always equal to each other. So since AOB is 70, so is DOC.

Hope this makes sense:)

5 0
3 years ago
What’s the correct answer for this?
kondor19780726 [428]

A(-3,5) to B(8,1)

That makes a right triangle 8 - -3 = 11 in the x direction, 5 - 1 = 4 in the y direction.

d² = (8 - -3)² + (1 - 5)² = 11² + (-4)² = 121 + 25 = 146

d = √146 = 12.083045973594572

Answer: 12.1

4 0
3 years ago
Need hello with my school
IRINA_888 [86]

Answer:

G oo g l ee I use it there's a scan

8 0
3 years ago
Other questions:
  • Determine the quotient of 2 over 3 divided by 4 over 5
    14·3 answers
  • There are 6 1/3 cups of juice left. How many 1/3 cups of juice would there be in the juice that is left
    15·1 answer
  • Two circles have the same radius. Complete the description for whether the combined area of the two circles is the same as the a
    6·2 answers
  • I need help with this
    10·1 answer
  • The product of any interger and 2 is greater than 2 what is the answer
    12·2 answers
  • Jimmy can walk 2/9 of a mile in 2/9 of an hour. How fast does he walk in miles/hour
    5·1 answer
  • What is the slope of the line that passes through the points (7,-9) and (15, -29)?
    15·2 answers
  • The book store is having a sale where all hardcover books are 20% off. Jamie also has a coupon for 15% off any fiction book. Jam
    10·2 answers
  • Line l has a slope of 1.2. What is the slope of line p that is parallel to line l
    11·1 answer
  • For each situation, determine the slope and y-intercept of the graph of the equation that describes the situation.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!