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
kotegsom [21]
3 years ago
8

Can anyone solve this using the "completing the square" method? (or something similar)

Mathematics
1 answer:
enyata [817]3 years ago
4 0
X=8.

x(x+3)=40
2x+3x=40
5x=40
x=8
You might be interested in
You have a new mobile phone. The phone costs £140 and then you pay for a one year contract at £15 per month. How much do you pay
netineya [11]
It is the amount you pay each month times 12
15x12=£180
6 0
3 years ago
14) A circular clock has a circumference of 80.5 meters. What the measurement of the radius, in meters, of the clock? Round to t
Liula [17]

Answer: 12.8

Step-by-step explanation:

Divide 80.5 by pi then divide by 2

7 0
2 years ago
Jacky spent 53% of all her money to buy a computer game. How much did the game cost, if Jacky had $120 before buying the game?
Keith_Richards [23]
The game cost 63.6$, because 53% of 120 is 63.6
5 0
3 years ago
Read 2 more answers
After solving the equation x^2+ 9 = 6x, Donna stated that the Fundamental Theorem of Algebra is true for this equation. However,
Georgia [21]

Answer:

Step-by-step explanation:

The Fundamental Theorem of Algebra states that the number of complex roots a polyomial has is equal to its highest exponent.  This is a squared polynomial; second degree; quadratic.  When it is factored, no matter what types of numbers you get as the solution, you will ALWAYS have 2 of them.  When this quadratic is factored, we get that x = 3 and x = 3.  That means that this is a quadratic that touches the x-axis at (3, 0).  It doesn't go through, it only touches.  We do have 2 roots, but since they're the same, we say we have a multiplicity 2 of that root.  The closest you'll come to that in your choices is A.  Apparently your text refers to multiplicity 2 as a double root.

3 0
3 years ago
Which of the following statements is true?
boyakko [2]

Answer:

B) Aluminum and steel are good conductors of electricity.

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • Henry is making a recipe for biscuits. A recipe calls for 5/10 kilogram flour and 9/100 kilogram sugar.how much sugar and flour
    6·2 answers
  • D is the midpoint of AC. If AD = 2x + 6 and DC = 4x-7, what is the length of DC?
    9·1 answer
  • PLEASE HELP!<br><br> Find the value of x. IMAGE BELOW<br> a) 20.485<br> b) 35.631<br> c) 86.113
    15·1 answer
  • Omg this is hard plz help
    5·1 answer
  • A survey found that one out of five Americans says he or she has visited a doctor in any given month. If 10 people are selected
    8·1 answer
  • If 9 out of 25 people are left-handed what percent are right-handed
    7·1 answer
  • Josh created a pattteren .20 tiles were blue . For the rest of the patteten he used equal numbers of red and white tiles . 40 pe
    6·1 answer
  • If a 1 = −3 and a n = −2an − 1, what is the fifth term of the sequence?
    15·2 answers
  • Solve for x e^2x=2.6
    10·1 answer
  • PLEASE HELPP MEE ITS DUE TODAY
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!