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
Cerrena [4.2K]
3 years ago
8

Rewrite the equation by completing the square.

Mathematics
1 answer:
ser-zykov [4K]3 years ago
4 0

Answer:

4 × 2 + 20×

Step-by-step explanation:

please your questions are mixed up

You might be interested in
Find the slope of the line through the given points (9,2) and (7,8)
Kipish [7]
The velocity, slope, of a line is always (y2-y1)/(x2-x1), in this case:

slope=(8-2)/(7-9)=6/-2=-3

m=-3
3 0
3 years ago
2) A pharmacist has 60 ml of an 8% alcohol solution. How much water should be evaporated so that the solution that remains is 10
Amiraneli [1.4K]

Answer:

let water evaporated be x ml

...

acid 8% ------60 ml

...

final quantity = 10% ----(60-x)

..

60*8 = 10(60-x)

480=600-10x

10x=600-480

10x= 120

/10

x=12 ml should be evaporated.

Step-by-step explanation:

4 0
3 years ago
There are 20 blue marbles and 10 red marbles in a bag .if a marble is drawn at random once ,what is the probability that it will
andrew11 [14]

Answer:

2/3

Step-by-step explanation:

First, you figure out how many marbles are in total, which is the denominator. The total number of marbles is 30.

Then, you figure out how many marbles are blue, which is the numerator. There are 20 blue marbles.

Finally, you simplify the fraction. 20/30=2/3.

5 0
3 years ago
Read 2 more answers
Factor the following quadratic equation; <br><img src="https://tex.z-dn.net/?f=12%20%7Bx%7D%5E%7B2%7D%20%20%2B%2022x%20-%2014" i
Bogdan [553]

Answer:

2(3x + 7)(2x - 1)

Step-by-step explanation:

You can see it a little easier if you take out a common factor of 2

2(6x^2 + 11x - 7)

The 6 leaves you with a lot of factors, the 7 does not. It only has 2 factors.

Let 6 factor into 2 and 3 and the 7 into 7 and 1

2(3x - 1 )(2x + 7)

Now remove the brackets.

2(6x^2 + 21x - 2x - 7) This obviously does not work but we'll combine like terms anyway.

2(6x^2 + 19x - 7)

So we'll try it again

2(3x + 7)(2x - 1)

2(6x^2 + 14x - 3x - 7)    Looks like we have it.

2(6x^2 + 11x - 7)

So the right factors are

2(3x + 7)(2x - 1)

5 0
3 years ago
Elliot uses 3/8 pound of clay to make a charm for a necklace. how much clay does he use to make 4 charms?
Lapatulllka [165]

Answer:

3/2 pound of clay is used

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the average of a set of numbers
    7·2 answers
  • An __________ is used to indicate the repeating part of a repeating decimal.
    12·1 answer
  • PLEASE HELP! 18-20 PLEASE HELP ME
    9·1 answer
  • What number is 33% of 360? Round to nearest tenth if necessary. Show work
    8·2 answers
  • Plz prove the given equation!!!​
    11·1 answer
  • Can you explain it and help me out please​
    14·1 answer
  • Which point best represents v10 ?
    15·1 answer
  • The product of a number and 4 is 69. What is the number?
    9·1 answer
  • Food A contains 150 calories in 3/4of a serving. Food B contains
    6·2 answers
  • 5. If 4 books and 5 pencils cost 56KM, 5 books and 4 pencils
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!