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
Margarita [4]
3 years ago
12

14. Solve: 3x² + 5x – 12 = 0B. 4-3C. 8, - 18​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
7 0

Answer:

b

Step-by-step explanation:

The equation:

3

x

2

−

5

x

−

12

=

0

is in the form:

a

x

2

+

b

x

+

c

=

0

with  

a

=

3

,  

b

=

−

5

,  

c

=

−

12

The roots are given by the quadratic formula:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

x

=

5

±

√

(

−

5

)

2

−

4

(

3

)

(

−

12

)

2

(

3

)

x

=

5

±

√

25

+

144

6

x

=

5

±

√

169

6

x

=

5

±

13

6

That is:

x

=

5

+

13

6

=

18

6

=

3

 

or  

 

x

=

5

−

13

6

=

−

8

6

=

−

4

3

You might be interested in
A computer system password requires five characters, all lowercase letters (remember there are 26 letters), and all the letters
Goshia [24]
26 divided by 5 = 5.2
3 0
3 years ago
What is the volume of this prism? <br> A. 23.9 ^3<br> B. 47.7 cm^3<br> C. 4.50 cm^3<br> D. 9.00 cm^3
melisa1 [442]

Answer: A) 23.9

Step-by-step explanation:

volume of a shape means the area of its base multiplied by its height

so , the base here is a right angle triangle it's area equals 1/2*b*h = 1/2*3*6=9 m² and the prism height is 2.65.

therefore the volume is 2.65*9

8 0
3 years ago
What is the answer to 4x+y=10
Alina [70]

Answer:

y = -4x + 10

Step-by-step explanation:

I am going to assume you are trying to write the equation of a line.

4x + y = 10

4x - 4x + y = 10 - 4x

y = -4x + 10

7 0
3 years ago
Solve by elimination <br> 5x-y=12 <br> 3x+2y=2
Ber [7]
(2)5x-y=12
   3x+2y=2
10x-2y=12
 3x+2y=2
13x=2
x=0.15
7 0
3 years ago
Read 2 more answers
You and five of your friends ordered your tickets online together. JetBlue ticket prices cost $289 round-trip including tax. The
baherus [9]

Answer:

y= 288x + 7.99

Step-by-step explanation:

# of tickets : x

y = 289x + 7.99

⬇️ _________ put in y = mx + b

y = 289(6) + 7.99

⬇️ _________ plug in

y = 1734 + 7.99

⬇️ _________ Add

y = 1741.99

HOPE THIS HELPS! (:

5 0
3 years ago
Other questions:
  • 9.
    7·1 answer
  • The volume of a prism is 8000 mm3. What is the volume of this prism, measured in cm3?
    9·1 answer
  • Pleaseeeeeee help meeee!!!!!!!!!!!!
    11·1 answer
  • What is 178.03 rounded to the nearest ten
    15·2 answers
  • Find the mean of the following Fahrenheit temperature readings: –6˚, 4˚, 2˚, 0˚, –7˚, 6˚, –4˚, 2˚.
    7·2 answers
  • Original price is $50, discount is 15%, what is the sale price?
    13·2 answers
  • Anyone know this ? I don’t understand math
    8·2 answers
  • ...........................​
    15·1 answer
  • Jackrabbits are capable of reaching speeds up to 40 miles per hour how fast is this per second
    14·2 answers
  • Hippos can weigh up to 5300 pounds. A baby hippo‘s current weight is 2200 pounds. How much weight can he gain? Right and solve a
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!