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
Sergio039 [100]
3 years ago
8

Solve the following C^2-14=5c

Mathematics
1 answer:
kipiarov [429]3 years ago
8 0

Answer:

c = - 2, c = 7

Step-by-step explanation:

Given

c² - 14 = 5c ( subtract 5c from both sides )

c² - 5c - 14 = 0 ← in standard form

To factorise the quadratic

Consider the factors of the constant term (- 14) which sum to give the coefficient of the c- term (- 5)

The factors are - 7 and + 2, since

- 7 × 2 = - 14 and - 7 + 2 = - 5, hence

(c - 7)(c + 2) = 0

Equate each factor to zero and solve for c

c - 7 = 0 ⇒ c = 7

c + 2 = 0 ⇒ c = - 2

You might be interested in
Tom's and Tim's ages add up to 21 years. In 3 years, Tom will be twice Tim’s age. How old are they now?
Harrizon [31]

The correct answer between all the choices given is the first choice, which is "<span>Tom is 15, and Tim is 6"</span><span>. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>

6 0
3 years ago
Read 2 more answers
SOMEONE HELP ME PLEASE
WINSTONCH [101]

Answer:

Fraction: 50/100

Percentage: 50%

Step-by-step explanation:

Find the total amount of marbles:

30+50+20=100

Number of blue marbles: 50

Fraction: 50/100

Percentage: 50%

7 0
3 years ago
How to simplify (x+6)(x-6)
SCORPION-xisa [38]
Using (a-b)(a+b)= a2-b2
Simply the product
x2-62
Evaluate the power
x2-36
6 0
4 years ago
Shawna reduced the size of a rectangle to a height of 2 in. What is the new width if it was originally 24 in wide and 12 in tall
miskamm [114]

Answer:

4 inches.

Step-by-step explanation:

The height of a rectangle is reduced by Shawna to a size of 2 inches.

The original width of the rectangle was 24 inches and the height was 12 inches.

If the ratio of width to height remains the same, then we can find the new width.

If the new width is x inches then, we can write

\frac{x}{2} = \frac{24}{12}

⇒ x = 4 inches. (Answer)

7 0
2 years ago
Read 2 more answers
Please state the all definitions
Leno4ka [110]
Negative reciprocal- Negative Reciprocal. Opposite Reciprocal. The result of taking the reciprocal of a number and then changing the sign.
parallel- In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel.
4 0
3 years ago
Other questions:
  • Mt. Everest, the highest elevation in Asia, is 29,028 feet above sea level. The Dead Sea, the lowest elevation, is 1,312 feet be
    14·1 answer
  • Robert the number 80, if the rule is subtract 7, what is the third number in Rob's pattern
    14·1 answer
  • 5x + 7y = -29, y = x + 1
    15·1 answer
  • Number 7 please help!!
    11·1 answer
  • Which equation is a quadratic model for the data set? Hint: Use a graphing calculator or a spreadsheet program.
    9·1 answer
  • At the match between north storm and west stanford there were 71,167 spectators. if 41,109 were north storm supporters, how many
    12·1 answer
  • Help, please ? Thank you so much in advance and I'd appreciate it!
    11·2 answers
  • Consider the following expression 4x+5y+9+3y
    11·2 answers
  • Find m∠TUL.
    10·1 answer
  • Hellp plzzzzzzzzzzzz
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!