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
miv72 [106K]
3 years ago
12

What are the roots of the quadratic equation below 3x2+15x-5=0

Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

<h2>A</h2><h2 />

Step-by-step explanation:

3x^2+15x-5=0\\a = 3\\b = 15\\c = -5\\ x = -b\±\frac{\sqrt{b^{2} -4ac} }{2a} \\x = -(15)\±\frac{\sqrt{15^{2} -4(3)(-5)} }{2(3)} \\x = -15 \±\frac{\sqrt{225+60} }{6} \\x = -15\±\frac{\sqrt{285} }{6} = A

You might be interested in
The ____ of ____ property allows you to rewrite . xa· xb as xa + b.
gregori [183]
The rule of distributive property allows you to rewrite xa + xb as x (a + b).

So if x = 2, a = 3 and b = 4, xa + xb = x(a + b)
(2 * 3) + (2 * 4) = 2 (3 + 4)
6 + 8 = 14
14 = 14
...and so on. You may try it yourself with different variations.

Thank you for posting your question. I hope you found what you were after. Please feel free to ask me more.

 

 

<span> </span>

7 0
3 years ago
Read 2 more answers
A $1,500 loan has an annual interest rate of 4 1/2 on the amount borrowed.how much time has elapsed if the interest is now $127.
Vadim26 [7]
Probably none of them except 156. 
6 0
3 years ago
Please help quick! Thank You!
Softa [21]

Answer:

8      7

Step-by-step explanation:

15/10-8/10=7/10

4 0
3 years ago
I'll give brainly thing<br><br> What is the equation, in slope-intercept form, for the given graph?
leonid [27]

Answer:1

Step-by-step explanation:

The line is intercepted with the number one

6 0
3 years ago
10 POINTS!!!! If the answer is correct…
Snezhnost [94]

Answer:

4, 6, 63, 10

Step-by-step explanation:

gets mutiplied by 7

7 0
2 years ago
Read 2 more answers
Other questions:
  • Write and solve a real-world problem that can be modeled by the equation 0.75x-18.50=0.65x Finding X the variable
    10·2 answers
  • A student is solving a system of equations by substitution and comes up with the solution 3=3. Assuming that he solved the probl
    8·1 answer
  • A flight from New York City to Chicago takes 3 1/2 hours
    12·1 answer
  • Select the system of linear inequalities whose solution is graphed.
    15·1 answer
  • How to make a square root spiral​
    12·1 answer
  • Drag the tiles to the correct boxes to complete the pairs. Match each word problem to its solution. Seven more than 3 times a nu
    9·2 answers
  • What is the length of line segment KJ?
    7·1 answer
  • Dilation of 2 about the origin
    6·1 answer
  • last month leonardo went to the gas station 5 times to buy gas for his car the numbers of gallons he purchased were 14.071, 14.3
    15·1 answer
  • The cost of 4 notebooks and 3 pens is $14.50. The cost of 5 notebooks and 6 pens is $21.50. Part A: What is the cost of each ite
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!