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
Wewaii [24]
3 years ago
15

Solve each equation using the quadratic formula. Find the exact solutions. 6n^2 + 4n - 11

Mathematics
2 answers:
Murrr4er [49]3 years ago
7 0

Answer:

Does anyone know how to do this?

Step-by-step explanation:


Paul [167]3 years ago
5 0

Answer:

\frac{-2\pm\sqrt{70}}{6}}

Step-by-step explanation:

The quadratic formula is \frac{-b\pm\sqrt{b^2-4ac}}{2a}, where a, b, and c are values in the quadratic ax^2 + bx + c. Plug in the values to get \frac{-4\pm\sqrt{4^2-4(6)(-11)}}{2\cdot6} \implies \frac{-4\pm\sqrt{16+264}}{12} \implies \frac{-4\pm2\sqrt{70}}{12} = \boxed{\frac{-2\pm\sqrt{70}}{6}}

You might be interested in
Explain how you would subtract -4 - 6 using a number line​
AlladinOne [14]

Start at -4 on the number line. Move 6 units to the left to get to -10

This shows -4 - 6 = -10

6 0
3 years ago
Factor the expression below.
Genrish500 [490]

Answer:

A. (6x + 7)(6x - 7)

Step-by-step explanation:

use difference of squares, which says a^2 - b^2 =(a+b)(a-b)

take the square roots of the two numbers, 6x and 7, and use them as a and b

8 0
2 years ago
Evaluate [(21 + 6) − 3^2] ÷ 9 ⋅ 2.
Vlada [557]
 [(21 + 6) − 3^2] ÷ 9 ⋅ 2=[(27) − 9] ÷ 9 ⋅ 2
=18 ÷ 9 ⋅ 2
= 2 . 2
= 4
6 0
3 years ago
Read 2 more answers
A boat makes a 120-mile trip downstream in 3 hours but makes the return trip in 4 hours.
Free_Kalibri [48]

Answer: C 5mph

Hope this helps!!

6 0
3 years ago
Six friends attend a party. They form pairs for a game. How many different pairs are possible?
Leona [35]

Pairs, in this case, relates to a group of 2 or more. We have 6 friends. Let's call them A,B,C,D,E,F. This will allow us to make a [some sort of] combination tree:

1. ABC against DEF

2. ABD against CEF

3. ABE against CDF

4. ABF against CDE

5. ACD against BFE

6. ACE against BDF

7. ACF against BDE

8. ADE against BCF

9. ADF against BCE

10. AEF against BCD

I believe there are 12 combinations... I just can't think of the last 2 though.

5 0
3 years ago
Other questions:
  • Can anyone help me solve this problem its called life its a tricky one
    8·2 answers
  • Cindy has a cylindrical bucket filled with sand; the area of the circular bottom is 10pi inches and the hieght of the bucket is
    9·1 answer
  • The road above is 5 km long. How many meters long is it?
    7·2 answers
  • What is 45,803 in expanded form
    10·1 answer
  • BIG POINTS Please solve. Thanks!
    13·1 answer
  • Graph each point on a coordinate plane. Name the quadrant in which each is located
    15·2 answers
  • Mn- p=2m<br> (solve for m)
    13·2 answers
  • About 3/5th of the registered voters participated in 2016 election. California has 25 million registered voters. Find the number
    15·1 answer
  • Consider the multivariable function f\left(x,y,z\right)=\frac{x^3-2.5y^2+\frac{z}{2}}{z\left(x-y\right)}f ( x , y , z ) = x 3 −
    5·1 answer
  • 0.234 is bigger or less than 0.76​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!