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
Dmitry_Shevchenko [17]
3 years ago
9

Solve for x. Write both solutions, separated by a comma. 7x2 - 4x - 3=0

Mathematics
1 answer:
aleksandr82 [10.1K]3 years ago
4 0

Answer:

<h2>x = - 3/7 or x = 1</h2>

Step-by-step explanation:

7x² - 4x - 3 = 0

Rewrite - 4x as a difference

That's

7x² - 7x + 3x - 3 = 0

Factorize the expression

7x( x - 1) + 3 ( x - 1) = 0

(7x + 3)( x - 1 ) = 0

7x + 3 = 0 x - 1 = 0

7x = - 3 x = 1

x = -3/7

The solutions are

x = - 3/7 or x = 1

Hope this helps you

You might be interested in
How do you expand -10(4-b)
katen-ka-za [31]

Answer:

<h2><u>=10b−40</u></h2><h2><u></u></h2>

Step-by-step explanation:

−10(4−b)

=(−10)(4+−b)

=(−10)(4)+(−10)(−b)

=−40+10b

<u>=10b−40</u>

5 0
3 years ago
Here are two patterns made using identical rhombuses. Without using a protractor, determine the value of a and b.
satela [25.4K]

Answer:

<em>a = </em>60°

<em>b </em>=<em> </em>120°

Step-by-step explanation:

First, you can find measure <em>a </em>by using the first shape. There are six rhombuses, and you can use the innermost <em>a </em>of each one to form a circle. A full circle is 360°, so divide 360 by six. The answer is sixty. So on the next shape, the <em>a</em> measurements add up to 120°. Subtract that from the circle: 360 - 120 = 240. And since there are two measurements for <em>b</em>, you would divide 240 by two. The answer is 120.

To check your work, use the knowledge that circles are 360° (the four interior corners of a rhombus will also add up to 360°. 2(120) + 2(60) = 360. Hope this helps! Feel free to ask any questions!

7 0
3 years ago
Read 2 more answers
The equation of a line is (3)/(5)x+(1)/(3)y=(1)/(15) . The x-intercept of the line is , and its y-intercept is .
boyakko [2]

bxf-mgii-whr

Step-by-step explanation:

come I will teach

6 0
3 years ago
What is the result of multiplying 2.5x10^10 by 3.5x10^-2?
mojhsa [17]
8.75^8 when you multiply you add your exponents and when you divide you subtract your exponents

5 0
4 years ago
Read 2 more answers
????????????????????
Svet_ta [14]
#2- yes because both can be divided or multiplied for example 3 and 9, u can multiply 3x3 to get 9 since the dilation is 3 then yes it is similar triangles
4 0
3 years ago
Other questions:
  • What is the solution (x,y) to the system of equations below <br><br> x + 9y = 3<br> y= 1/3 x + 7
    12·1 answer
  • 25 POINTS PLEASE HELP SOMEONE WHO CAN
    14·2 answers
  • Use the graph of y=sin theta to find the value of 2theta for theta = pi/4 radians
    11·1 answer
  • I don't understand this please help me ill really appreciate it :)
    11·1 answer
  • Use the Distributive Property to rewrite this expression. 3(x + 12)
    14·1 answer
  • What is 60 percent of 47
    5·2 answers
  • Find the selling price of a $450 painting with a 45% markup
    15·1 answer
  • A manager at a pizza shop wants to start visually checking finished pizzas, but she doesn't have time to check every pizza. She
    8·1 answer
  • Combine like terms and write an equivalent expression with the fewest number of terms 10x-5+3x-2
    15·1 answer
  • A bike travels at 10 meters per second for 30 seconds. How far has it travelled?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!