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
Alinara [238K]
3 years ago
12

How many real number solutions does the equation have 0=5x^2+2x-12

Mathematics
2 answers:
Harman [31]3 years ago
7 0
 Rearrange the equation to standard form of a quadratic equation (ax^2+bx+c=0) by switching sides: 5x^2+2x-12=0. Now, use the quadratic equation formula to solve. You should come out with x_1=sqrt61-1/5 and x_2=-1+sqrt61/5. Thus, your answer is B, or two solutions.
aniked [119]3 years ago
3 0

Answer:

A.  two solutions

Step-by-step explanation:

To find the number of real solutions the equation is having, we need to solve first;

0=5x²+2x-12

This equation can be re-written as;

5x²+2x-12 = 0

We will use the formula method to solve

Using formula method;

x = -b ±√b² -  4ac  / 2a

From the equation given,

a = 5   b =  2   and c=-12

x = -2 ± √2² - 4(5)(-12)  /  2(5)

x = -2 ± √4 + 240  /  10

x = -2/10   ± √244 /10

x = \frac{-1}{5} ±  1.56

x = - 0.2  ±  1.56

Either    x = -0.2 + 1.56     or     x = -0.2 - 1.56

Either     x  = 1.36                or     x = -1.76

Therfore, this equation have two real number solutions

You might be interested in
Anyone who knows this mathematic question will get the brainliest
spayn [35]
The third one is 510 not show in the pic here

7 0
3 years ago
Identify the graph of the compound inequality (-2 <2x-6) (3x-12 510)
asambeis [7]

Answer:

Step-by-step explanation

just plug in 0 for z so it would change to -2<6

7 0
3 years ago
I need help please!:D
klasskru [66]

Answer:ion know

Step-by-step explanation:

5 0
2 years ago
Matteo is adjusting a satellite because he finds it is not focusing the incoming radio waves perfectly. The shape of his satelli
natka813 [3]

Answer: (1.5, 0)

Step-by-step explanation:

Given : The shape of his satellite can be modeled by y^2=6x where x and y are modeled in inches.

Now,the given equation y^2=6x is a equation of parabola.

Here, coefficient of x is positive, hence the parabola opens rightwards.

On comparing this equation with standard equation x^2=4mx, we get

4m=6\\\Rightarrow\ m=\frac{6}{4}=1.5

In standard equation, coordinates of focus=(m,0)

Thus for given equation coordinates of focus=(1.5,0)

4 0
3 years ago
Read 2 more answers
Show work please!...
Leni [432]

Answer:what goes around comes around

Step-by-step explanation:

"i need points too thanks"

7 0
3 years ago
Other questions:
  • Is x+y^3=27 a function?
    15·1 answer
  • Find m∠ZWV.<br><br> A. 5°<br> B. 23°<br> C. 35°<br> D. 50°
    5·1 answer
  • During the first week of the year, Angelina's dad give her $10 and says that he will give her $10 more each week for the rest of
    9·2 answers
  • DeSPERATE!!! 6+5(s-3t)= ??
    9·2 answers
  • A 36-foot-tall tree casts a 9-foot shadow. How tall is a nearby tree that casts a 14-foot shadow at the same time?
    15·1 answer
  • Please help me to get correct answer
    12·1 answer
  • Write and solve an equation to find the missing dimension of the prism.
    9·2 answers
  • .........................................
    10·1 answer
  • -4b + 8c + 12 - 8b - 2c + 6. what is the value of the expression when b=2 and c= -3? Enter your answer.
    11·1 answer
  • Enter the value for x that makes the equation -4 (5 - x) + 7x = 189 true.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!