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
Andre45 [30]
3 years ago
7

Solve the equation 2x^2-x=1

Mathematics
2 answers:
Blababa [14]3 years ago
8 0
First move all terms to the same side.
2x^2-x-1=0
Factor this to get
(2x+1)(x-1)=0
Separate into
2x+1=0 and x-1=0
Solve these two to get
X=-1/2 or x=1
Final answer:
X=-1/2 or x=1
AlladinOne [14]3 years ago
3 0
2x^2-x=1\ \ \ | subtract\ 1\\\\
2x^2-x-1=0\\\\use\ factorization:\\
write\ -x\ as\ x-2x\\\\
2x^2+x-2x-1=0\\\\
x(2x+1)-1(2x-1)=0\\\\
(x-1)(2x+1)=0\\\\
x=1\ \ \ or\ \ \ 2x=-1\\\\
x=1\ \ \ or  \ \ \ x=-\frac{1}{2}
You might be interested in
Alex has a collection of sports cards. There are 10 cards in the collection, and 1/5 of them are hockey cards. Alex decides to d
Alborosie
If 1/5 of the cards are hockey cards, there are 2 hockey cards. if he wants to double that amount, he would multiply it by 2, so 2•2=4. The fraction of hockey cards is now is 2/5.
4 0
3 years ago
A soccersoccer playerplayer who makesmakes 2020​% of herher free kicksfree kicks is asked to kickkick free kicksfree kicks until
BlackZzzverrR [31]

Answer:

Yes.

This probability experiment represents a binomial experiment.

Step-by-step explanation:

A binomial probability experiment is the discrete probability distribution of the number of successes in a sequence of n independent experiments. It has only two outcomes - either yes or no.

For this case it is a binomial probability experiment because the only outcomes available are: she either misses the free kick or gets it.

8 0
3 years ago
Can someone please help me on this question?
solniwko [45]

ANSWER:

According to question, our g(x) becomes f(x) - 5.

When x = 1,

f(x) - 5 = 5 - 5 = 0.

When x = 2,

f(x) - 5 = 7 - 5 = 2.

When x = 3,

f(x) - 5 = 11 - 5 = 6.

When x = 4,

f(x) - 5 = 19 - 5 = 14.

So, <u>Correct choice</u> - [D]

4 0
2 years ago
How many number are a units away from 0, if a&gt;0?
NikAS [45]

The number of numbers which are a units away from 0 if a>0 is; 2 numbers.

<h3>Distance between numbers on the number line</h3>

by convention, the distance between two numbers on the number line is usually a positive number.

On this note, since the required numbers are a units away from zero, it follows that;

  • |a - 0| = a units

OR

  • |0 - a| = a units.

On this note, only 2 numbers are a units away from zero according to the given condition.

Read more on number line;

brainly.com/question/17555743

6 0
2 years ago
Identify each statement as true or false, show how you would rewrite it to make it a statement.
Temka [501]
1. false= 3•2+3•4
2. true
3. false= 7•20+7•8
4. false= 4•5+4•10
5. true
7 0
3 years ago
Other questions:
  • Use the diagram that awnser the questions.
    7·2 answers
  • A party size bag of tortilla normally coast 3.80. the supermarket has them on sale today for 2.25. what is the percentage of the
    9·1 answer
  • Answer both please man. Or sorry you'll get a 1 star rating. THanks for answering guys!
    9·2 answers
  • Fill the solution to the following equations​
    12·1 answer
  • What is the value of sec<br> in the triangle below?<br> 41 ft<br> 9 ft<br> 40 ft
    11·2 answers
  • What is the solution to the following system?​
    5·1 answer
  • The nth term of a sequence is 8(n+3)<br> what are the first four terms?
    12·1 answer
  • Helpppppp. Pleaseeeeeeeeeeee
    15·1 answer
  • Which list orders –3, 2, 5, –1 from least to greatest?
    7·2 answers
  • The longest length of a sail on Jessica's sailboat is 12v40 feet long. Which number is equivalent to this length?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!