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
blondinia [14]
3 years ago
9

4x^2-x-3=0 Solve by completing the square. x= ?

Mathematics
1 answer:
rodikova [14]3 years ago
6 0
<span>4x^2-x-3=0
let us rewrite the equation in much simplified form:
x^2 - 0.25x - 0.75 = 0
</span><span>x^2 - 0.25x = 0.75
</span>x^2 - 1/4 x + 1/64 =3/4 + 1/64
(x-1/8)^2 = 49/64
x−<span>1/8</span>=±<span>49/64

</span><span><span>x1</span>=−<span>3/4
</span></span><span><span>x2</span>=1</span>
You might be interested in
Counting backwards from 5, what number is 4?
umka21 [38]

Answer:

The number 4 is the first term of the sequence

Step-by-step explanation:

we know that

<u>Counting backwards</u> is when the numbers are count in reverse sequence

Is also know as 1 less

In this problem the sequence of counting backwards from 5 is equal to

4,3,2,1,0

therefore

The number 4 is the first term of the sequence

6 0
3 years ago
2. Four less than six times a number is 32. Write and solve an equation.
zhenek [66]

Answer:

6x - 4 = 32. The variable (times a number) is equal to 6.

Step-by-step explanation:

So this equation is basically asking you to formulate an equation using only the words given. For this equation, let's use a variable in place of the part where it says "times a number." When a question says that phrase, that means that they are telling you to use a variable in place of a mystery number. A variable is a letter in place of a mystery number. Knowing this, let's now solve the equation. We will use the variable x in place of our mystery number.

Four less than 6 times a number: 6x - 4 _ __.

Now we can add the equal sign and the 32: 6x - 4 = 32.

We can now solve. Add 4 to both sides of the equation to cancel out the -4:

6x - 4 = 32

    <u>+4   + 4</u>

6x  =    36

Now we divide 6 into both sides of the equation to single out the x.

<u>6x = 36</u>

6      6

36/6 = 6, so:

x = 6

I hope that this helps.

8 0
2 years ago
Solve the following system of equations:
Akimi4 [234]
It would have no solutions that's your answer.
6 0
3 years ago
On an English exam, a student can make one of four grades. 40 students who took the exam were randomly selected and surveyed abo
andrezito [222]

Answer:fffffff

Step-by-step explanation:fffffffff

3 0
2 years ago
The 14th term of an arithmetical progression is 15 and it's 9th term is 35 find the 15th term​
AURORKA [14]

Answer:

the 15th term is 11

Step-by-step explanation:

common difference is= -4

first term is 67

4 0
2 years ago
Other questions:
  • Robert bought 10 shares o aper Company for $18 each and later sold all of
    5·1 answer
  • Find the quotient of <br> 1<br> 4<br><br> ÷<br> 3<br> 8<br><br> in simplest form
    9·2 answers
  • A man and his daughter together weigh 90 kg, the man with his cat weigh 70 kg, and the daughter and the cat together weigh 40 kg
    11·1 answer
  • Karen works at a car dealership. She makes only $5 an hour, but for every car she sells, she makes $1,000 in commission. If Kare
    12·1 answer
  • BRAINLIEST BRAINLIEST!!! <br> EASY MATH! Do with explanation!!
    10·1 answer
  • Which length could represent the side length of a right triangle?
    12·1 answer
  • What's 763.53 × 63.97 = ?​
    14·2 answers
  • I will give brainliest
    10·2 answers
  • When a number is decreased by 2.6%, the result is 83. What is the original number to the nearest tenth?
    5·1 answer
  • Which values are part of the solution set? Check all that apply. x = 3 x = –5 x = negative one-half x = –4.5 x = –4
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!