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
elena-s [515]
2 years ago
13

Please help me solve this maths problem ☺

Mathematics
1 answer:
earnstyle [38]2 years ago
8 0
I cant see the image sorry man wish i could help

You might be interested in
49x^2=-21x-2 quadratic functions
lara [203]

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

                 

   



   


                                                                                                                                                                                                   







3 0
1 year ago
The justice leagues refrigerator costs them $2545 a year to run. they buy a new one for $1250
Marina86 [1]

Answer:

the answer is 1295

Step-by-step explanation:

8 0
3 years ago
Which expression is equivalent to 4/9(2n - 3)
krek1111 [17]

Answer:

8n/9 - 4/3

Step-by-step explanation:

4 0
3 years ago
Jim kept record of rainfall for seven weeks the data is shown in the graph find the absolute mean deviation of the data (round a
kkurt [141]

Answer:the correct answer should be d.2.07

Step-by-step explanation:

5 0
3 years ago
-3(1+6r)+12=14. solve for r
emmasim [6.3K]

Answer: r = -5/18


Step-by-step explanation: You solve -3(1+6r)+12=14

-3-18r+12=14 (When distributed)

-18r+9=14

-18r=5

r=-5/18


6 0
3 years ago
Read 2 more answers
Other questions:
  • in a circle a 60 degree sector has an area of 25 pie square feet. what is the circumference of he circle?
    10·1 answer
  • PLEASE HELP!!! Chloe is working two summer jobs, landscaping and clearing tables. She must work no less than 12 hours altogether
    6·1 answer
  • Find sin θ if cos θ = 4/7 and θ in quadrant IV.
    11·1 answer
  • two right triangles share a common side and have equal areas. the hypotenuse of the light green triangle is one of the legs of d
    6·1 answer
  • Which of the following is an example of a quadratic equation?
    11·1 answer
  • -3x -3 = 2x + 7.<br> Will mark brainlest
    13·2 answers
  • 7) John is draining his pool at a rate of 6 gallons per minute. His pool starts with
    9·1 answer
  • What is the value of y in the triangle
    11·1 answer
  • PLEASE HELP ASAP I WILL MARK YOU BRAINLIEST!!!
    10·2 answers
  • if tiles cost $1.15 per square feet , how much would cost to tile aa rectangular room that is 13 feet by 15 feet ?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!