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
insens350 [35]
3 years ago
9

If using the method of completing the square to solve the quadratic equation

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

The number to add is (11/2)^2 = 121/4

Step-by-step explanation:

Here, we want to know the number that will complete the square

We rewrite the equation as follows;

x^2 + 11x = -30

x^2 + 11x + (11/2)^2 = -30 + (11/2)^2

x^2 + 11x + 121/4 = -30 + 121/4

You might be interested in
I think it subtract 5 but I don't know for sure
Zarrin [17]

Answer:

Subtract both sides by 7

Step-by-step explanation:

We have to make sure that we isolate the x term first. So we must subtract 7 from both sides.

4 0
3 years ago
Read 2 more answers
Write the sentence as an equation.<br><br> 193 is r times 242
Maslowich

Answer:

193=r242

Step-by-step explanation:

                           

3 0
4 years ago
Sara bought a dress on sale for $30. She saved 45%. What was the original cost?
Arte-miy333 [17]

Answer:

$43.50 i think

Step-by-step explanation:

30+45%=$43.50

5 0
3 years ago
Read 2 more answers
On a city map, a library is located at (6, 2) and a school is located at (3, 3). If each unit equals one mile, what is the dista
Marizza181 [45]

Answer:

<em>3.2 miles</em>

Step-by-step explanation:

Given the coordinate  point (6,2) and (3,3)

The distance between the two points is expressed using the formula;

D = √(x2-x1)²+(y2-y1)²

D = √(3-2)²+(3-6)²

D = √1²+(-3)²

D = √1+9

D = √10

D = 3.2

<em>Hence the distance (in a straight line) between the library and the school rounded to the nearest tenth is 3.2 miles</em>

8 0
3 years ago
Help! What can we do to kill off the zombies?? The scientists realize that salt kills the zombies, if enough is poured on them (
pshichka [43]

Answer:

I think its f(n)=300,000n

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the mixed fraction <br> for 10/4
    10·2 answers
  • I don't know how to solve questions like this. k-10=-7
    5·2 answers
  • Water flows at a rate of 9000 cubic inches per minute into a cylindrical tank. the tank has a diameter of 144 inches and a heigh
    15·2 answers
  • Is this the only answer to this question? If is then thx.
    6·1 answer
  • What is the value of x?<br> O 40<br> O 70<br> O 140<br> O 160
    5·1 answer
  • 2) Find the volume of the following cube:
    14·1 answer
  • Use una variable para escribir una expresión para representar: catorce más que el cociente de ciento doce y algún número a. 14 &
    8·1 answer
  • Can someone please help me answer this one question plzzzzz
    10·2 answers
  • My class size has decreased by 35% this year. I had 20 students last year, how many do I have now?​
    13·1 answer
  • You are walking directly away from your house.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!