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
blondinia [14]
3 years ago
11

Complete the steps in solving the quadratic function 7x – 9 = 7x2 – 49x by completing the square

Mathematics
1 answer:
siniylev [52]3 years ago
4 0

Answer:

x={-sqrt(103/7)+4, sqrt(103/7) +4}

Step-by-step explanation:

Subtract 7x from both sides: 7x^2-56x=-9

Divide both sides by 7: x^2-8x=-9/7

Solve for a (2ax=-8x): -4

Plug a back in: -9/7+(-4)^2=103/7

Complete the square: (x-4)^2=103/7

Therefore, x={-sqrt(103/7)+4, sqrt(103/7) +4}

You might be interested in
What is the value of x and the length of the segment?
Paha777 [63]

Answer:

x=14

PN=MN=85

Step-by-step explanation:

It is an isosceles triangle because PQ=MQ and QN is perpendicular to PM. PN=MN

8x-27=6x+1

2x=28

x=14

PN=MN=85

4 0
2 years ago
Read 2 more answers
Plead help asap im on assement
marshall27 [118]

Answer:

18.7 m/h

Step-by-step explanation:

I believe that is the correct answer because it shows the answer is going to be m/h (meter/hour) so then you would just divide the meters over the hours.

768.57 / 41.1 = 18.7 m/h

3 0
3 years ago
The 2021 senior trip is scheduled to be in Orlando Florida at the new Disney world theme park. Marcus has been saving his lunch
miskamm [114]

Answer:

He made seven A's.

Step-by-step explanation:

360-220=140

140/20=7

3 0
3 years ago
Write a recursive formula for an, the nth term of the sequence 3, -4, -11
yKpoI14uk [10]

Answer:

, 12, 48, 192...

a. Write a recursive formula for the nth term of the sequence

Ans: a(n+1) = 4*a(n)

------------------------------

b. Write a general formula for the nth term of the sequence

a(n) = 3*4^(n-1)

--------------

c. Calculate S10 for this sequence

Geometric sequence with a(1) = 3 and r = 4

----?

Step-by-step explanation:

8 0
2 years ago
Simplify radical expression
Sedbober [7]

Answer:

the right answer is option D. 0.5b

I just want you know that there is another easier method

8 0
3 years ago
Read 2 more answers
Other questions:
  • 4y-x=5+2y; 3x+7y=24 solve systen by using substitution
    10·1 answer
  • A change in the dollar price of yen from $1 = 100 yen to $1 = 50 yen will:
    5·1 answer
  • Which is the solution to the inequality?<br>2 3/5 &lt;b-8/15​
    14·1 answer
  • 26. The first half of a play is 35 minutes longer than the second half of the play. If
    14·1 answer
  • Identify the independent and dependent variables.
    10·1 answer
  • Equivalent expression for 5a+30
    6·1 answer
  • Is the answer A,B,C or D.
    5·1 answer
  • Which descriptions can describe more than one triangle? check all that apply
    9·2 answers
  • what does sam need to score on the fourth test to ensure that she will have an average of90% for all four tests?
    7·1 answer
  • Riley has r red peppers and 51 green peppers. Write an expression that shows how many peppers Riley has.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!