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
Naddika [18.5K]
3 years ago
9

What is 4x(5x-2)=20x-2

Mathematics
1 answer:
Zanzabum3 years ago
7 0

Answer: x = 1.32 and x= 0.076

Step-by-step explanation:

4x(5x-2) = 20x-2

20x^2-8x = 20x-2

20x^2-8x-20x+2=0

20x^2-28x+2=0

Using quadratic equation

x = (-b +or- √(b^2-4ac))/2a

a =20, b=28, c= 2

Substitute into the equation

x= (7+√39)/10. = 1.32

x = (7-√39)/10 = 0.076

You might be interested in
How would I simplify 53-2(16/8*16-7)
Oduvanchick [21]

The simplified form of the expression is 3

<h3>Simplifying an Expression</h3>

From the question, we are to simplify the given expression

The given expression is

53 -2(16/8 * 16-7)

Simplifying

Using BODMAS

53 -2(16/8 × 16-7)

53 -2(2 × 16-7)

53 -2(32-7)

53 -2(25)

53 -50

= 3

Hence, the simplified form of the expression is 3

Learn more on Simplifying an Expression here: brainly.com/question/3622770

#SPJ1

7 0
2 years ago
Define right triangle.
Firdavs [7]

Answer:

D

A right triangle is a triangle that has one 90 degree angle, so looking at the options i would say D

Step-by-step explanation:


3 0
3 years ago
Read 2 more answers
The sum of two numbers is 53 . The larger number is 9 more than the smaller number. What are the numbers?
Illusion [34]

x + y = 53

x -y = 9  Adding both equations

2x = 62

x = 31 y = 22


6 0
3 years ago
An apartment building has the following apartments:
artcher [175]
On the second floor we have 6 apartments, and we have 2 more apartments with 3 bedrooms, so 8/16 apartments are either on the second floor or have 3 bedrooms. 8/16 is the same as 1/2, or 50%
3 0
3 years ago
Please help with #6. How do I find all of the real zeros? Thank you!!!
Morgarella [4.7K]

I'm assuming you're referring to problem 6. You are asked to find the number of x intercepts or roots, which is another term for "zero". I prefer the term root or x intercept as "zero" seems misleading. Anyways, all we do is count the number of times the graph crosses the x axis. This happens 4 times as shown in the attached image below. I have marked these points in red. The graph can directly cross over the x axis, or it can touch the x axis and then bounce back. Either way, it is considered an x intercept.

<h3>Answer: there are 4 x intercepts (or 4 roots)</h3>

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which sets of points are collinear?
    11·2 answers
  • One hundred football players were asked how many broken bones they have suffered. The probability distribution shows the probabi
    9·1 answer
  • Simplify (3x2 + 2x - 3) (x + 5)​
    13·1 answer
  • Solve for me pleasee​
    10·2 answers
  • Please help me!!!<br> solve for f : 5/6 f =5<br> 1. 5<br> 2. 4.2<br> 3. 7.3<br> 4. 6
    14·1 answer
  • An architect's scale drawing of a new school is 8.4 inches
    13·1 answer
  • What is the algebraic rule for a figure that is rotated 270° counterclockwise about the origin?
    14·1 answer
  • 960 meters in 15 seconds.
    9·1 answer
  • Find the slope of the line through each pair of points. Show work please (7,9), (-2, 19)
    10·2 answers
  • Please help!!!! Asap
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!