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
VMariaS [17]
3 years ago
5

What are the answers to the following quadratic equation: x^2-4x-12

Mathematics
2 answers:
Alla [95]3 years ago
6 0

Answer:

6 and -2

Step-by-step explanation:

x^2-4x-12

set up equal to zero

x^2-4x-12=0

lets factor:

(x-6)(x+2)=0

x-6=0

x=6

or

x+2=0

x=-2

Fiesta28 [93]3 years ago
5 0

Answer:

x=6  x=-2

Step-by-step explanation:

x^2-4x-12 = 0

Factor

What two numbers multiply to -12 and add to -4

-6*2 = -12

-6+2 = -4

(x-6)(x+2) =0

Using the zero product property

(x-6) =0   x+2 = 0

x=6  x=-2

You might be interested in
What is 62500000 in standard form
8090 [49]
<span>Not included first digit (6), there are 7 digits so 

62 500 000 = 6.25×10^7</span>
5 0
4 years ago
A ball is thrown into the air from an apartment balcony and falls to the ground. The height of the ball, h metres, t seconds aft
andriy [413]

Answer:

1+2\sqrt{2} seconds

Step-by-step explanation:

When the ball hits the ground, its height will obviously be 0. Therefore, you can set up the equation the following way:

0=-5t^2+10t+35 \\\\-5(t^2-2t-7)=0

Plugging this into the quadratic equation, you get:

t=\dfrac{2\pm\sqrt{4+28}}{2}= \\\\\dfrac{2\pm4\sqrt{2}}{2}= \\\\1\pm2\sqrt{2}

Since the time must be positive, it takes the ball 1+2\sqrt{2} seconds to hit the ground, or around 3.828. Hope this helps!

7 0
3 years ago
Write down the 3rd term in the sequence given by: T(n) = n2 + n
Sergio [31]
The solution for the problem is:
I will first get the first five terms so that I could easily locate the third term of this problem:So, substituting the values:
T(1) = 1^2 = 1T(2) = 2^2 = 4T(3) = 3^2 = 9T(4) = 4^2 = 16T(5) = 5^2 =25
So the third terms is T(3) = 3^2 = 9
8 0
3 years ago
Operations definition please
ad-work [718]
The action of being active
8 0
3 years ago
Read 2 more answers
if 20 students ride on your bus and two fifth of them pack there lunches how many of them didnt pack there lunch
Vadim26 [7]
Your Answer Is...

12.

(If you need an explanation, comment below.)

Glad I Could Help, And Good Luck!

~AnonymousGiantsFan~
5 0
3 years ago
Other questions:
  • 10 POINTS Which expressions are equal to 6^3 x 2^6/2^3?
    5·1 answer
  • Zohar is using scissors to cut a rectangle with a length of 5x – 2 and a width of 3x + 1 out of a larger piece of paper. The per
    9·2 answers
  • There are 100 people in a sport centre.
    5·1 answer
  • A line passes through the two given points. Is it vertical, horizontal, or neither? (-8, 3), (-7, 3)
    9·1 answer
  • 5x-19≤1 OR -4x+3 -9/4 <br> D) No solution <br> E) All values of x are solutions
    12·1 answer
  • 3 ratios that equal to 14:28
    7·1 answer
  • if you run for 4 hours at 8miles an hour and walk 8 hours at 2 miles an hour, how far will you you have gone at the end of 12 ho
    9·2 answers
  • A boathouse costs $3000 a month to operate, and it spends $750 each
    7·1 answer
  • Matteo is following this recipe to make a cake.
    15·1 answer
  • Calculate the amount of money​ you'll have at the end of the indicated time period.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!