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
Oxana [17]
3 years ago
9

Solve x^2+8x=33 by completing the square. Which is the solution set of the equation? A. -11,3. B. -3,11. C. -4,4. D. -7,7

Mathematics
1 answer:
adoni [48]3 years ago
8 0

Answer:

A

Step-by-step explanation:

x^2 +8X = 33

x^2 +8X +(8/2)^2 = 33 + (8/2)^2

(x + 8/2)^2 = 49

(x +4)^2 = 49

x = -11

x = 3

You might be interested in
Need help asp pleaseeeeeeee
riadik2000 [5.3K]

Answer:

x=4

Step-by-step explanation:

You can use the app photo math, thats what I did you just take a pic of the problem and it shows you the steps and answer

7 0
3 years ago
Read 2 more answers
describe how axioms about addition in particular could be helpful in developing theorems about multiplication.
Lady_Fox [76]
The axioms in addition help in developing theorems about multiplication because multiplication, in simple terms, repeated addition.
As an example,
This addition operation
3 + 3 + 3 + 3 = 12
can be expressed as a multiplication operation
3 x 4 = 12
<span />
8 0
3 years ago
How do I factor out the coefficient of the variable 2b+8
inn [45]
2 (b+4)
2 being the factored coefficient
4 0
4 years ago
Need help with question a
SVEN [57.7K]

Answer:

1.8 cm

6.3 cm²

Step-by-step explanation:

AC⊥BC

BD=BC=x

  • (x+5)²+x²=7²
  • x²+10x+25+x²=49
  • 2x²+10x- 24=0
  • x²+5x-12=0
  • x=1.8

BC= 1.8 cm

Area of ABC= 1/2*1.8*7= 6.3 cm²

4 0
3 years ago
Together Alex and Lily have 12 cats. If Alex has 3, write an equation to find out how many lily has.
zavuch27 [327]

Answer:

12-3 lily has 9 cats

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • A boat has a top speed of 4949 knots​ (nautical miles per​ hour). what is this speed in miles per​ hour?
    13·1 answer
  • Please see questions below.
    15·1 answer
  • Write a sentence to model the following equation:<br> -20+20=0
    12·2 answers
  • the store is having a promotion. for every 8 glasses you buy, you get 3 free plates. Malcolm got 9 free plates. how many glasses
    5·2 answers
  • What is the volume of a cylinder that has a diameter of 22km and a height of 7km
    15·1 answer
  • I need help! Please.
    9·1 answer
  • PLZ I NEED HELP <br> i really need help on this or i will fail!!!
    15·2 answers
  • Please help <br><br> Evaluate 6 to the power of 2 divided (3 + 9).
    15·1 answer
  • I need help please help
    14·2 answers
  • What is the solution to the inequality 3a/2 &lt; 24
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!