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
kiruha [24]
3 years ago
6

Solve the equation by completing the square. X^2-4x+4=9

Mathematics
2 answers:
vredina [299]3 years ago
7 0

Answer:

x =5      x =-1

Step-by-step explanation:

X^2-4x+4=9

(x-2)^2 = 9

Take the square root of each side

sqrt((x-2)^2) = sqrt(9)

x-2 = ±3

Add 2 to each side

x-2+2 = 2±3

x = 2+3     x =2-3

x =5      x =-1

Shalnov [3]3 years ago
4 0

Answer:

-1, 5

Step-by-step explanation:

See the steps below:)

You might be interested in
Find the dimensions of the square <br> Area=441cm over 2
MA_775_DIABLO [31]

Answer:

each side is 55.125cm

Step-by-step explanation:

you have to divide the area by 2

then do 441/2=220.5

then divide this by 4 because a square has 4 equal sides so 220.5/4=55.125

5 0
3 years ago
A mechanic charges $60 to inspect your heater, plus $70 per hour to work on it. You owe the mechanic a total of $410. Write and
ratelena [41]

Answer:

($410 - $60) / $70 = 5

After subtracting the $60 base fee, you can just divide the hours paid for by the hourly wage and find out how many hours were worked. Hope this helps!

3 0
4 years ago
21 is 35% of what number (shown work)
svp [43]

Answer:

60

Step-by-step explanation:

Is means equals and of means multiply

21 = 35% * n

21 = .35*n

Divide each side by .35

21/.35 = .35n/.35

60 = n

7 0
3 years ago
Read 2 more answers
-1 3/7 x (-3 2/3)=?
xxTIMURxx [149]
I was not sure if the x in your equation was a multiplication sign or a variable
6/7x
-1 multiplied by 3/7x times -2
And when you multiply two negatives it equals a posible so the -2 and -1 turn into a positive
6 0
3 years ago
The GRE is an entrance exam that many students are required to take in order to apply to graduate school. In 2014, the combined
zlopas [31]

The probability that a randomly selected score is greater than 334 will be 0.02275.

<h3>What is a normal distribution?</h3>

The Gaussian Distribution is another name for it. The most significant continuous probability distribution is this one. Because the curve resembles a bell, it is also known as a bell curve.

The z-score is a statistical evaluation of a value's correlation to the mean of a collection of values, expressed in terms of standard deviation.

The GRE is an entrance exam that many students are required to take in order to apply to graduate school. In 2014, the combined scores for the Verbal and Quantitative sections were approximately normally distributed with a mean of 310 and a standard deviation of 12.

Then the probability that a randomly selected score is greater than 334 will be

The z-score is given as

z = (x - μ)/σ

z = (334 - 310)/12

z = 24/12

z = 2

Then the probability will be

P(x > 334) = P(z > 2)

P(x > 334) = 1 - P(x<334)

P(x > 334) = 1 - 0.97725

P(x > 334) = 0.02275

More about the normal distribution link is given below.

brainly.com/question/12421652

#SPJ1

6 0
2 years ago
Other questions:
  • in the 2010 new york city marathon 42429 people finished the race and received a medal before the race the medals had to be orde
    13·1 answer
  • What is the surface area of a triangular prism
    12·1 answer
  • Rules for exponents help?
    11·1 answer
  • Find the missing lengths. If needed, round the answers to the nearest tenth.
    8·1 answer
  • The height of a soccer ball that is kicked from the ground can
    11·1 answer
  • Please help ASAP
    13·1 answer
  • Is y=2x^3 an even or odd function or neither
    11·1 answer
  • Help pls :) 10 points
    12·1 answer
  • I need help in really confused ​
    8·1 answer
  • Solve this linear equation. Show all workings
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!