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
JulsSmile [24]
1 year ago
6

49x^2=-21x-2 quadratic functions

Mathematics
1 answer:
lara [203]1 year ago
3 0

Answer: 49x^2=-21x-2 quadratic functions -1/7and -2/7    



Step-by-step explanation:

Quadratic function:

In elementary algebra, the quadratic formula is a formula that provides the solution to a quadratic equation. There are other ways of solving a quadratic equation instead of using the quadratic formula, such as factoring, completing the square, graphing and others.

Move terms to the left side

49x^{2}  =-21x-2

49x^{2}  -(-21x-2) =0

 Distribute

49x^{2}  -(-21x-2) =0

49x^{2}+21x+2=0

Use the quadratic formula



 x=(-b±√b^{2}  -4ac  ) / 2a

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

 49x^{2}+21x+2=0

let, a=49

b=21

c=2

 Replace with values in this equation

X=(-b±√b^{2}  -4ac  ) / 2a

Simplify

Evaluate the exponent

Multiply the numbers

Subtract the numbers

Evaluate the square root

Multiply the numbers

x=(-21±7) /98

Separate the equations

To solve for the unknown variable, separate into two equations: one with a plus and the other with a minus.Separate

x=(-21+7) /98

x=(-21-7) /98

Solve

Rearrange and isolate the variable to find each solution

x=-1/7

x=-2/7



                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Learn more about area here https://brainly.in/question/5597925

#SPJ9

                 

   



   


                                                                                                                                                                                                   







You might be interested in
If you earned $1000 interest on a loan of $5200
AVprozaik [17]

Answer:

170 years

Step-by-step explanation:

R/100=2.5%

time= 100=0.025 per year (1/0.025) (5200\1000)-1=168

time=168 years

7 0
3 years ago
Please help me I will give you the brain thing and extra points. 1/5
katrin [286]

Answer: A

Step-by-step explanation:

With scaling transformations you’re multiply

8 0
3 years ago
Read 2 more answers
8 and 11/100 into a mixed number and a decimal
katrin [286]

Answer:

8.11 and 9 1/11

Step-by-step explanation:

7 0
3 years ago
the length of a rectangle is one more than four times its width. If the perimeter of the rectangle is 62 meteres, fing the dimen
Andrews [41]

Length (L): 4w + 1

width (w): w

Perimeter (P) = 2L + 2w

62 = 2(4w + 1) + 2(w)

62 = 8w + 2 + 2w

62 = 10w + 2

60 = 10w

6 = w

Length: L = 4w + 1 → 4(6) + 1 → 24 + 1 → 25

Answer: 6 meters x 25 meters

7 0
3 years ago
What's the answer for 1/2 of 3/5?
Zigmanuir [339]

Answer:

3/10

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • What is the distributive property of 4+5(×+9)=51 ?
    15·1 answer
  • True or false if a function y = f(x) satisfies dy/dx = y, then y = e^x
    5·1 answer
  • Today Benjamin put a watch on layaway by making a down payment of 65 and agreeing to pay 12 per month starting next month for 15
    9·2 answers
  • Solve r(s+t)=u for the variable t. Describe the operations used to solve.
    12·2 answers
  • In the diagram, AC is a diameter of circle O. If the slope of BC is -1/2 , what is the slope of AB?
    10·2 answers
  • First to answer will be the brainliest i need the answer ASAP
    13·1 answer
  • True or False: Consecutive interior angles have corresponding positions in the same side of the transversal
    14·2 answers
  • Pls helppppppp!!!!!!!
    6·1 answer
  • R1 663 200 in words?​
    6·1 answer
  • Consider this data set: {49, 50, 45, 23, 35, 66, 34, 74, 54, 50}
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!